* Rakhigarhi was the largest site of Indus Valley Civilisation found in Hisar in Haryana.

* The total area of the Rakhigarhi site will be 350 hectares.

* The discovery of two more mounds at the Harappan site of Rakhigarhi in Haryana made it the biggest excavation site of Harappan civilisation.

• ‘Bandi Jeevan’ book was published by Sachindranath Sanyal.

• Sachindranath Sanyal was one of the founding members of Hindustan Republican Association.

• He was the author of the HRA manifesto, titled ‘The Revolutionary’.

• He was sent to the Cellular Jail in Port Blair twice which is infamously known as Kaalapani.

* Article 213 deals with the ordinance powers of governors of state.

* He can promulgate ordinance when the Legislative Assembly is not in session in case of the unicameral legislature or when both Legislative assembly and council are not in session in case of a bicameral legislature

India has a Parliamentary Form of Government.

Separation of Powers: According to the Constitution, there are three organs of government - legislature, executive and judiciary. The legislature refers to our elected representatives. The executive is a smaller group of people who are responsible for implementing laws and running the government. The judiciary refers to the system of courts in this country. In order to prevent the misuse of power by any one branch of government, the Constitution says that each of these organs should exercise different powers.

Secularism: A secular state is one in which the state does not officially promote any one religion as the state religion.

The 42^nd Constitutional Amendment Act was passed in 1976. It is also known as the mini constitution of India. The Act made changes in the preamble of the constitution. It added three words –Socialist, Secular and integrity. It replaced- ‘sovereign democratic republic’ with ‘sovereign socialist secular democratic republic’ and also changed from ‘unity of nations’ to ‘unity and integrity of nations.

• Bishnoi is the movement for saving trees. this movement was started by the Environmentalist Amrita Devi and other village men in 1730 to save the villages sacred trees and protect the forest from deforestation.
• It was mainly started against the cutting of trees.
• In the movement, the villagers hugged the trees and made statements like to kill them before they kill the trees.
• The Bishnoi tree martyrs were influenced by the teachings of Guru Maharaj Jambaji who laid the principles forbidding harm to trees and animals.

* Ramsar convention signed in 1971 and came into force in 1975.

* It aims to develop a global network of wetlands for the conservation of biological diversity and for sustaining human life.

* Globally, there are over 2,300 Ramsar sites around the world covering over 2.1 million sq km.

● Tomato is the natural source of Oxalic acid.

● The chemical formula for oxalic acid is C₂H₂O₄.

● Oxalic acid is a white crystalline solid that forms a colorless solution in water.

● Sour Milk contains Lactic acid.

● Ant sting contains Formic acid.

● Tamarind contains Tartaric acid.

World No Tobacco Day is observed on May 31 every year to highlight the risk associated with the use of tobacco.

The theme of World No Tobacco Day 2021 is “Commit to quit.”

Celebrated around the world every year on May 31, World No Tobacco Day was created by the Member States of World Health Organization (WHO) in 1987 to draw global attention to the tobacco epidemic and the preventable death and disease it causes.

The Government of India launched the National Tobacco Control Programme (NTCP) in the year 2007-08 during the 11th Five-Year-Plan.