Natural Ports can be developed on Lagoons. Coastal lagoons, which offer protection from harsh ocean waves, are often used as harbors. Example, Kochi port is located at the entrance of a lagoon 

• Russia has offered Indian colleagues to conduct a short visit to the ISS.
• The flight will take place in 2022 before or after India's independent manned space mission.
• The agreement is expected to be signed in the near future,
• Soyuz is an International Space Station and is a habitable artificial satellite in low Earth orbit.

• External Commercial Borrowing in India can be accessed via two routes viz. Automatic Route and Approval Route.
• The Government of India permits ECBs as a source of finance for Indian Corporates for expansion of existing capacity as well as for fresh investment.
• ECB means any kind of funding other than Equity. Investment in equity is treated as FDI.
• Long Term Debt is defined as debt with an ‘Original Maturity’ of more than one year while Short Term Debt is defined as debt repayments on demand or with an ‘Original Maturity’ of one year or less.

• A buyback is a mechanism through which a listed company buys back shares from the market.
• A company can typically offer dividend only once in a year. It can also not change the dividend rate too much from one year to another, as doing so raises expectations among shareholders for subsequent years. On the other hand, a company can conduct a buyback whenever it likes. Hence, Buybacks are more flexible
• When the number of shares outstanding goes down, the company's earnings get divided among a smaller number of stocks, resulting in improved earnings per share (EPS).

• Open Acreage Licensing Policy (OALP) gives an option to a company looking for exploring hydrocarbons to select the exploration blocks on its own, without waiting for the formal bid round from the Government.
• Under Open Acreage Licensing Policy (OALP), a bidder intending to explore hydrocarbons like oil and gas, coal bed methane, gas hydrate etc., may apply to the Government seeking exploration of any new block (not already covered by exploration).
• What distinguishes OALP from New Exploration and Licensing Policy (NELP) of 1997 is that under OALP, oil and gas acreages will be available round the year instead of cyclic bidding rounds as in NELP. Potential investors need not have to wait for the bidding rounds to claim acreages.

• The Lonar crater is the only known impact crater in the world to have formed on basalt rock
• Some examples of crater lakes those located in
  •  Mount Mazama, Oregon USA
  •  Albertine Rift, Africa 
  • Mount Pinabuto–Luzon, Philippines 
  •  Quilotoa Crater Lake, Ecuador 
• Lonar crater is unique because it’s the world’s only high-velocity meteor crater in hard basalt.
• It is an impact crater or meteorite crater which is aa bowl-shaped depression with a raised rim
• Lonar Lake in Maharashtra and St. Mary’s Island and Malpe beach in coastal Karnataka are the GSI’s candidates for UNESCO Global Geopark Network status.

India's air safety oversight is lower than its Asia-Pacific counterparts such as Bangladesh, Maldives, Pakistan, Nepal, Sri Lanka and North Korea. 

The report prepared by the International Civil Aviation Organisation (ICAO) shows that the only countries that rank below India are Papua New Guinea, Timor-Leste, Vanuatu and Samoa.

It is built by the Yantar Shipyard, Kaliningrad, Russia. 

INS Tarkash is armed with an advanced combat suite, comprising an optimal blend of Russian and Indian cutting edge technologies.

Her arsenal includes the ‘BRAHMOS’ Supersonic Cruise Missiles, Surface-to-Air Missile (SAM) System, Medium Range Gun, Close-In Weapon System (CIWS), Torpedoes and Anti-Submarine Rockets.

• Substantive equality means achieving equitable outcomes as well as equal opportunity, and the need to sometimes treat people differently to achieve equal results.
• It is achieved by addressing and preventing systemic discrimination by adjusting policies, procedures and practices to meet the specific needs of certain groups in the community
• Substantive equality implies that there should be ‘real’ equality and is often used to justify treating ‘unequals’ unequally. 
• Under Article 16(4), the state can provide for reservation of appointments/posts for any backward class which in the opinion of the state is not adequately represented in a government service.

Sperm whales are found in many open oceans, both in tropical and cool waters. Males range from equator to polar regions, while females and juveniles migrate north too although they usually spend more time in temperate regions.