• Indian sites in the like Keoladeo National Park-Rajasthan, Loktak Lake – Manipur is included in the Montreux Record.

• Damdama lake is the largest lake in Haryana and was formed when a stone and earthen dam constructed by the British was commissioned for rainwater harvesting in 1947.
• Damdama Lake is located in Gurugram district.

• Gases and Liquids are normally described as viscous fluids. An ideal viscous fluid is unable to store any deformation energy.

Custom Hiring Centre (CHC) are basically a unit comprising a set of farm machinery, implements and equipment meant for custom hiring by farmers. The main objective of CHC is to supply of farm implements to small, marginal and poor farmers at subsidized rates on hire.

• The tracheal breathing system of insects Insects do not breathe through their mouths as we do. The do not have lungs and their blood, which is a watery, yellowish liquid, does not carry oxygen and carbon dioxide around their bodies.
• Insects have a system of tubes, called tracheae, instead of lungs.
• These tracheae penetrate right through the insect's body.
• Air enters the tracheae by pores called spiracles.
• These spiracles are found on each side of the insect's abdomen. Each segment of the abdomen has a pair of spiracles.

• The administrative division of Rohtak consists of the highest number of districts under it. Rohtak division has 5 districts
• There are 5 districts in Rohtak division (Rohtak, Charkidadri, Bhiwani, Jhajjar, Sonepat).

Why was Battle of Pollilur fought?

• Image results for The famous painting of the Battle of Pollilur in Indian history shows the fight between.
• The Battle of Pollilur was fought on 27 August 1781, between the forces of the Kingdom of Mysore under Hyder Ali and British East India Company forces led by General Eyre Coote.
• The battle was fought on the site of a 1780 encounter in which a Company force was almost completely routed or captured.

On April 2, 2022, India, and Australia signed the India-Australia Economic Cooperation and Trade Agreement (ECTA).

The Public Safety bill, 1928 was passed to curb the activities of socialists and communists. It was mainly to stop the Communist movement in India by cutting it off from British & foreign communist organizations.