Statement 1 is incorrect: The Prime Minister Relief Fund was set up in 1948 to assist the displaced peoples from Pakistan at the time of Partition. On the other hand, The PM Cares Fund was set up on 27 March 2020 by Prime Minister Shri Narendra Modi to deal with Covid-19.
The fund will be used for combat, containment and relief efforts against the coronavirus outbreak and similar pandemic like situations in the future.
Statement 2 is incorrect: The PM is the chairman of the trust. Members will include the defence, home and finance ministers.
The fund will also enable micro-donations. The minimum donation accepted for the PM CARES Fund is Rs 10
Statement 3 is correct: The donations will be tax-exempt and fall under corporate social responsibility.

Explanation:

Statement 1 is correct: Chatterjee was an Indian scientist employed with the Surveyor General
of India during the British colonial era.
Statement 2 is correct: He was likely the first person to scientifically document a tornado’s path
in 1865, a study from the Indian Institute of Tropical Meteorology (IITM), Pune, has claimed.
Chatterjee had published his findings in a journal named Proceedings of the Asiatic Society of
Bengal, in a paper titled ‘Note on a whirlwind at Pundooah’, near Hooghly.
The paper described a tornado’s dynamics in meticulous detail and was accompanied by a
sketch that mathematically depicted its scale, track and rotation.

His work

Chatterjee quantitatively mapped the entire trail of á tornado’s destruction.
He benefited from the rare opportunity to observe a tornado passing through a railway track
where there were conveniently placed markers at predefined locations.
This enabled him to observe and make clear measurements of the tornado’s direction,
dynamics and path.

Explanation:

Lingaraja Temple is a temple dedicated to Shiva and is one of the oldest temples in
Bhubaneswar, Odisha.
It represents the quintessence of the Kalinga Architecture and culminating the medieval stages
of the architectural tradition at Bhubaneswar.
The temple is believed to be built by the kings from the Somavamsi dynasty, with later
additions from the Ganga rulers.
It is built in the Deula style that has four components namely, vimana (structure containing the
sanctum), jagamohana (assembly hall), natamandira (festival hall) and bhoga-mandapa (hall of
offerings), each increasing in the height to its predecessor.
Bhubaneswar is called the Ekamra Kshetra as the deity of Lingaraja was originally under a
mango tree (Ekamra) as noted in Ekamra Purana, a 13th-century Sanskrit treatise.
The temple has images of Vishnu, possibly because of the rising prominence of Jagannath sect
emanating from the Ganga rulers who built the Jagannath Temple in Puri in the 12th century.

Explanation:

What is a Tornado?
A tornado is a rapidly rotating column of air that is in contact with both the surface of the Earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud.
The windstorm is often referred to as a twister, whirlwind or cyclone winds blow counterclockwise in the Northern Hemisphere and clockwise in the Southern.
Tornadoes come in many shapes and sizes, and they are often visible in the form of a condensation funnel originating from the base of a cumulonimbus cloud, with a cloud of rotating debris and dust beneath it.
It is generally accompanied by extreme weather such as heavy downpours, hail storms, and lightning.

Explanation: The Champaran peasant movement was launched in 1917-18. Its objective was to create awakening among the peasants against the European planters. These planters resorted to illegal and inhuman methods of indigo cultivation at a cost which by no canons of justice could be called an adequate remuneration for the labour done by the peasants.