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Project Tiger – Government’s effort to protect tigers in India

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Bengal Tiger

About Project Tiger:

Project Tiger is a tiger conservation program for in situ conservation of wild tigers in designated tiger reserves.

On 1st April 1973, the Project Tiger was launched by Mrs. Indira Gandhi in Palamu Tiger Reserve. [You may link it with 1972 Earth Summit]

3 subspecies of tigers are extinct out of traditionally recognized 8 subspecies.

Royal Bengal tiger is India’s dominant to subspecies of tiger, Panthera tigris tigris.

Tigers are the terminal consumer in the ecological food pyramid. Tiger conservation will result in conservation of all the trophic levels in an ecosystem.

Royal Bengal Tiger

Objective of Project Tiger

To ensure a viable population of tigers for economic, scientific, cultural, aesthetic and ecological values.

Limit factors that lead to the reduction of tiger habitat and to mitigate them by suitable management.

Site-specific eco-development to reduce the dependency of local people on tiger reserve resources.

Read Also: Top 10 Tiger Reserves in India

Challenges with Tiger Conservation

  • Protection against poaching
  • Fragmentation of habitat
  • Securing inviolate space for tiger to facilitate its social dynamics
  • Addressing tiger-human interface
  • Restoration of corridors
  • Eliciting public support of local people by providing ecologically sustainable option.

Implementation of Project Tiger

Project Tiger was administered by National Tiger Conservation Authority.

Project Tiger is implemented in 18 states – Andhra Pradesh, Arunachal Pradesh, Assam, Bihar, Chhattisgarh, Jharkhand, Karnataka, Kerala, Madhya Pradesh, Maharashtra, Mizoram, Odisha, Rajasthan, Tamil Nadu, Telangana, Uttarakhand, Uttar Pradesh and West Bengal.

Funds: 100% central assistance is provided for non-recurring items of expenditure to the state. 50% matching grant for the recurring items (90% in the case of Northeastern states) based on the annual plan of operation of the tiger reserve.

Voluntary relocation of people from core/critical habitats.

Addressing the human-wildlife conflict within the ambit of Wildlife (Protection)Act 1972.

Must Read: Project Tiger Government’s effort to protect tigers in India

The habitats covered under Project Tiger are:

  1. Shivalik Terai conservation unit
  2. North-East conservation unit
  3. Sundarbans conservation unit
  4. Western ghats conservation unit
  5. Eastern ghats conservation unit
  6. Central India conservation unit
  7. Sariska conservation unit

Various tiger reserves were created under core-buffer strategy

Core area:

The core areas are free of all human activities.

It has the legal status of National Park or Wildlife Sanctuary.

It is kept free of biotic disturbances.

Forestry operations like the collection of minor forest produce, grazing, and other human disturbances are not allowed within.

Buffer area:

The buffer areas are subjected to ‘conservation oriented land use’.

It comprises forest and non-forest land.

It is a multi-purpose use area with twin objectives of providing habitat supplement to spillover population of the wild animal from core conservation unit, providing site-specific co-developmental inputs to surrounding villages for relieving their impact on the core are.

Facts associated with Tiger Conservation

The number of tigers has improved to 2226 as per the latest census report released on January 20, 2015.

The all India tiger estimation is carried out once in every 4 years.

Rajaji National Park, Uttarakhand is India’s 48th National Park.

Also, Read:

Agasthyamala Biosphere Reserve (ABR) Listed by UNESCO

Ken-Betwa Project : Panel warns of Ecological Harms

Wildlife Corridors – Elephant Lifeline(s) – of Coimbatore

Quantum Radar and Imaging: Sensing Beyond Classical Limits

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quantum radar and imaging

Table of Contents

  1. Introduction
  2. Classical Radar and Its Limitations
  3. Principles of Quantum Radar
  4. Quantum Illumination
  5. Entangled vs Classical Signal Performance
  6. Quantum Advantage in Noisy Environments
  7. Signal-to-Noise Ratio and Error Probabilities
  8. Continuous-Variable and Discrete-Variable Protocols
  9. Quantum Correlation and Detection Schemes
  10. Entangled Photon Sources
  11. Microwave Quantum Radar Concepts
  12. Quantum Ghost Imaging
  13. Quantum-Enhanced Resolution and Superresolution
  14. Quantum LIDAR (Light Detection and Ranging)
  15. Adaptive Quantum Sensing Strategies
  16. Experimental Implementations and Prototypes
  17. Potential Military and Security Applications
  18. Challenges in Real-World Deployment
  19. Future Directions in Quantum Remote Sensing
  20. Conclusion

1. Introduction

Quantum radar and imaging technologies apply quantum principles—such as entanglement and quantum correlations—to improve detection, ranging, and imaging performance beyond what is achievable with classical systems.

2. Classical Radar and Its Limitations

Classical radar systems transmit electromagnetic pulses and detect reflections. Limitations include:

  • Low signal-to-noise ratio (SNR) in cluttered/noisy environments
  • Vulnerability to jamming
  • Resolution limited by classical optics and diffraction

3. Principles of Quantum Radar

Quantum radar typically employs entangled photon pairs or correlated quantum states to improve detection capability. One photon (signal) probes the target while the other (idler) is retained for reference.

4. Quantum Illumination

Quantum illumination uses entangled or correlated states to detect low-reflectivity targets in noisy backgrounds. Remarkably, it maintains quantum advantage even when entanglement is lost during signal propagation.

5. Entangled vs Classical Signal Performance

Despite entanglement degradation, the residual quantum correlation boosts detection probability. Quantum radar offers enhanced sensitivity in high thermal noise regimes where classical radar fails.

6. Quantum Advantage in Noisy Environments

Quantum illumination enables better error probability scaling:
\[
P_{ ext{err}}^{ ext{quantum}} \sim e^{-M}, \quad P_{ ext{err}}^{ ext{classical}} \sim rac{1}{\sqrt{M}}
\]
where \( M \) is the number of mode pairs. This leads to improved SNR under high noise.

7. Signal-to-Noise Ratio and Error Probabilities

Quantum radar improves:

  • Detection fidelity
  • False alarm rate
  • Receiver operating characteristics (ROC curves)
    The advantage is most prominent when background noise dominates.

8. Continuous-Variable and Discrete-Variable Protocols

  • CV protocols: Gaussian states, homodyne detection
  • DV protocols: Single-photon entanglement, click detectors
    Both paradigms are actively researched for radar applications.

9. Quantum Correlation and Detection Schemes

Detection involves measuring correlations between received signal and retained idler:

  • Joint detection enhances contrast
  • Conditional measurements improve discrimination

10. Entangled Photon Sources

Common sources:

  • SPDC (spontaneous parametric down-conversion)
  • Josephson parametric amplifiers (for microwave frequencies)
    High-brightness, broadband sources are essential for practical radar.

11. Microwave Quantum Radar Concepts

Efforts are underway to extend quantum radar into the microwave domain:

  • Quantum upconversion of microwave to optical
  • Microwave SPDC using superconducting circuits
    This enables compatibility with traditional radar systems.

12. Quantum Ghost Imaging

Ghost imaging uses correlations between photons to reconstruct images, even when the detecting camera has no spatial resolution. Quantum ghost imaging works with low light levels and through turbid media.

13. Quantum-Enhanced Resolution and Superresolution

Quantum techniques can beat the Rayleigh limit using:

  • NOON states
  • Sub-shot-noise detection
  • Phase-sensitive imaging
    Useful in biology, surveillance, and astronomical imaging.

14. Quantum LIDAR (Light Detection and Ranging)

Quantum LIDAR applies quantum illumination and photon correlation to rangefinding. Offers enhanced resilience to interference and can operate in low-photon regimes.

15. Adaptive Quantum Sensing Strategies

Machine learning and Bayesian inference adapt probe states and measurements to optimize detection. These strategies improve quantum sensor efficiency and robustness.

16. Experimental Implementations and Prototypes

Early prototypes demonstrate:

  • Low-power target detection
  • Phase-insensitive amplification
  • Quantum ghost imaging in lab settings
    Full-scale quantum radar systems remain a research frontier.

17. Potential Military and Security Applications

  • Low-power, stealth detection systems
  • Anti-jamming radar
  • Quantum-enhanced remote sensing
    Applications in defense, surveillance, and secure communications.

18. Challenges in Real-World Deployment

  • Losses and decoherence in practical channels
  • Limited entanglement range
  • High complexity of entanglement generation and detection
  • Need for robust hardware in hostile environments

19. Future Directions in Quantum Remote Sensing

  • Integration with classical radar systems
  • Space-based quantum radar
  • Passive quantum sensing with background correlations
  • Quantum radar networks and swarms

20. Conclusion

Quantum radar and imaging are poised to revolutionize sensing technology by leveraging quantum correlations for enhanced performance in noisy and low-light conditions. While technical challenges remain, ongoing advances are rapidly transforming theoretical promise into experimental reality.

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Real Estate Regulatory Bill 2016

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Real Estate Regulatory Bill

Real Estate Regulatory Bill 2016 (Regulation and Development), was passed in the Upper House, the Rajya Sabha, on 10 March, Lok Sabha passed it on 15 March. The Bill that solicits to protect home buyers as well as incourage investments in the real estate industry has been passed with 20 major amendments that have been approved by the Union Cabinet.

These amendments are based on the suggestions of a Rajya Sabha committee that was endorsed to examine Real Estate Regulatory Bill that was pending in the Rajya Sabha.

To ensure timely execution of projects (the Real Estate Regulatory Bill has paved the way for setting up of a Real Estate Regulatory Authorities (RERAs).

Must Read: Aadhaar Bill: Passage and its Characteristics

The Real Estate Regulatory Bill caters for mandatory registration of all projects with the Real Estate Regulation Authority in each state. Now projects on at least 500 sq metres of area or with eight flats are to registered with the recommended regulatory authority; earlier the area was 1000 sq metres. This amendment has brought a larger number of projects under the regulator’s range. Through, this amendment the Government has also tried to make it clear that the Bill aims at establishing regulatory body for transparent business.

Real estate agents who contemplate to sell any apartment, building or plot have to register themselves with the regulatory authority. Now builders have to deposit 70% of the sale proceeds, that comprises of land cost, in a security account to meet construction cost; earlier proposal for the same was 50% or less. And now they have to pay interest to home buyers for any defalcation or delays at the same rate they charge the buyers. Builders are going to be accountable for structural defects for five years; earlier proposal concerning the time frame was of two years.

Under the new proposal carpet area has been clearly defined as usable places like kitchen and toilets have been included in the definition. Garage has been kept out of the compass of the definition of apartment. Formation of residents association within three months of the allotment of a majority of units in a project has been made compulsory.

Read Also: National Food Security Bill

Although the Real Estate Regulatory Bill has authorized the regulatory authorities to hear and act the consumers’ complaints, it also permits the aggrieved consumers to approach consumer courts at the district level. The regulatory bodies will mostly be located in the state capitals.

It has been made mandatory for the Appellate Tribunals to adjudicate cases in 60 days; earlier proposal concerning the time- frame was of 90 days. Regulatory Authorities have to dispose of complaints in 60 days; in the earlier proposal there was no time frame.

According to the Real Estate Regulatory Bill there will be an imprisonment of up to three years in the case of promoters and up to one years in the case of real estate agents and buyers for any violation of orders of Appellate Tribunals or monetary fines or both.

The Government, earlier in December 2014, had brought commercial real estate projects under the compass of the Bill, made the conditions of the Bill applicable to all projects in which sales were still in progress and put in place a system that would consent of two thirds of buyers for changing project plans.

The amended and revisedReal Estate Regulatory Bill comprises an empowering provision for arranging insurance of land title, that is at present not available. This provision is going to benefit buyers and sellers in situations where the title of the land becomes invalid.

Don’t Miss: The Jan Lokpal Bill

Fundamental Duties Incorporated in Constitution of India

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Fundamental Duties of Indian Citizen

After coming to terms with the comprehension that the rights and duties of the citizens are interwoven and correlative, our parliamentarians finally inserted the fundamental duties through the enactment of 42nd Constitutional Amendment Act in 1976. This amendment incorporated a new part – Part IV A to the Constitution that comprises of only one Article, namely Article 51 A, which specifies a code of ten fundamental duties of the citizens. One more fundamental duty was added in 2002.

This was deliberately done on the part of the then parliamentarians, especially the party in the power the Congress party, as our original and constitution contained only fundamental rights and not fundamental duties. The then ruling party, declaring the non-inclusion of fundamental duties in the constitution as a historical mistake, made the claim that what the framers of the constitution failed to do was being done then.

Must Read: Fundamental Rights – Detailed Analysis Part I

Background

In 1976, during the course of the internal emergency (1975-77) as the need and necessity of fundamental duties was felt the Congress Party formed the Sardar Swarn Singh Committee to make the recommendations about it.

The Committee, while recommending the incorporation of a separate chapter on Fundamental Duties in the Constitution, emphasized that citizens should become conscious that in addition to the enjoyment of fundamental rights, they also do have certain duties to perform.

However, in the process of enactment of 42nd Amendment the government did not accept all recommendations of the Swarn Singh Committee. The recommendations not accepted by the then government were:

  • The parliament may provide for the imposition of such pending or punishment as may be considered appropriate for any non-compliance with or refusal to observe any of the duties.
  • No law imposing such penalty or punishment shall be called in question in any court on the ground of infringement of any Fundamental Rights or on the ground of repugnancy to any other provision of the Constitution of India.
  • Duty to pay taxes should be a Fundamental Duty of the citizens.

Read Also: Fundamental Duties of Indian Citizen

Fundamental Duties as listed in the Constitution

Article 51 A of the constitution of India states that it shall be the duty of every citizen of India:

(i) To abide by the Constitution and respect its ideals and institutions, the National Flag and National Anthem;

(ii) To cherish and follow the noble ideals that inspired the national struggle for freedom;

(iii) To defend the country and render national service when called upon to do so;

(iv) To promote harmony and the spirit of common brotherhood amongst all the people of India transcending religious, linguistic and regional or sectional diversities and to renounce practices derogatory to the dignity of women;

(v) To value and preserve the rich heritage of the country’s composite culture;

(vi) To protect and improve the natural environment including forests, lakes, rivers and wildlife and to have compassion for living creatures;

(vii) To develop scientific temper, humanism and the spirit of inquiry and reform.

(viii) To safeguard public property and to abjure violence;

(ix) To strive towards excellence in all spheres of individual and collective activity so that the nation constantly rises to higher levels of endeavour and achievement and;

(x) To provide opportunities for education to his child or ward between the age of six and fourteen years. This (duty) was added by the 86th Constitutional Amendment Act, 2002.

Also Read: Constitutional Development in India – From Regulating Act 1773 to Govt. of India Act 1935

Characteristics of the Fundamental Duties

Some of the Fundamental Duties belong to the class of moral duties and others and belong to the class of civic duties. For example, cherishing noble ideals of freedom struggle is a moral duty and respecting the constitution, National Flag and National Anthem is a civil duty.

Fundamental Duties are about such values that have been a part of Indian tradition, religions, mythologies and practices. In fact; the duties are integral to the Indian way of life.

In this context it is important to mention here what the Verna Committee had said that on Fundamental Duties. The committee said, essentially all that is contained in the Fundamental Duties is just a codification of tasks integral to the Indian way of life. A close scrutiny of clauses of Article 51 A indicates that a number of these clauses basically refer to such values as have been a part of the Indian tradition, mythology, religious and practices….it would be essential to create public awareness of the need to appreciate and internalize the concept and practice of Fundamental Duties with particular emphasis on the necessity of creating a harmonious society with a scientific outlook, free from tensions and turmoils.

Also Read: Vision set forth in the Indian Constitution

Fundamental Duties, Human rights and Mahatma Gandhi

The Fundamental duties, incorporated in the Article 51 A, are in concord with Article 29 of the Universal Declaration of Human Rights that says:

“Everyone has duties to community which alone the free and full development of his personality is possible.”

Mahatma Gandhi, while expressing his thoughts on the Universal Declaration of Human Rights, said: “The source of right is duty. If we all discharge our duties, rights will not be far to seek. If leaving duties unperformed we run after rights, they will escape us like will 0’ the wisp, the more we pursue them, the further they will fly.

Importance of Fundamental Duties

Fundamental Duties act as a reminder to the citizens that while enjoying their fundamental rights, they must not forget the duties they owe to their country and their society.

These duties function as a warning against the anti-social and anti-national activities such as burning the national flag and so on. For most of the citizens these duties are not only a source of inspiration but also promote discipline and commitment among them. The duties instigate a feeling that the citizens are not spectators only but active participants too in the process of fulfillment of national goals.

Since the Fundamental Duties are enforceable by law, the Parliament has got the power for the imposition of appropriate penalty for failure to fulfill any of them.

Don’t Miss: Important Constitutional Amendments in India

Today in History – 3 March

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today in history 3 march

today in history 3 march

78

Shaliwahan Shaka Hindu Calendar started.

1575

A battle was fought at Turkra or Turkra Qasba (in the Balasore district) in which the Afghans were routed.

1700

Chhatrapati Rajaram Maharaj died of small pox at Raigarh or Sinhagarh fort.

1707

Shehejade Muazzam declared himself as the successor of Aurangzeb and renamed himself Bahadurshah First.

Also Read: DECLINE AND FALL OF MUGHAL EMPIRE

1839

Jamshedji Nasarvanji Tata, famous industrialist and father of modern technology, was born at Navsari near Surat, Gujarat. He started cotton mills in Bombay and Nagpur and founded the Tata Iron and Steel Company, which is one of the largest integrated steel mills in the world.

1847

Alexander Graham Bell, great pioneer, inventor and professor, was born at Edinburgh, Scotland.

1859

A length of 119 miles of line was laid in the North from Allahabad to Kanpur.

1885

Congress passes Indian Appropriations Act (Indians wards of fed govt).

1924

Mustafa Kamal Attaturk abolished the caliphate and established a nationalist government and thus Khilafat Movement ended without achieving its aim.

Also Read: Non-cooperation and Khilafat Movement

1931

Gandhi and Viceroy Irwin sign Delhi Pact giving Indians right to make salt if civil disobedience stops.

1939

Gandhiji commences “”fast unto death”” at Rajkot to protest state’s autocratic rule at Bombay and to secure ruler’s adherence of promise given towards reform administration, and ends it on March 7 on Viceroy’s intervention.

1943

Gandhi breaks his hunger strike after 21 days.

1967

India signed the International Space Treaty in Moscow.

1983

Seventh Non-Aligned Summit started at New Delhi.

Also Read: Today in History – 2 March