* Varahamihira’s main work is the book Pancha Siddhantika (Treatise on the five Astronomical Canons).

* It is a treatise on mathematical astronomy.

* Vashishtaputra Pulamayi extended the Satvahana power up to the mouth of Krishna River.

* He issued many coins on which images of ships was inscribed.

* Their greatest port was Kalyani in Western Deccan.

• The Big Bang Theory is also called expanding universe hypothesis. Edwin Hubble postulated this theory in 1920 and provided evidence that the universe is expanding.

• As time passes, galaxies move further and further apart.

• The Big Bang Theory is the leading explanation about how the universe began. It started with a small singularity, then inflated over the next 13.8 billion years to the cosmos.

• Much of information about the Big Bang Theory comes from mathematical formulas and models.

• Astronomers can see the "echo" of the expansion through a phenomenon known as the cosmic microwave background.

• As per the Census of 2011, Thane district of Maharashtra is the most populated district of India.

• Thane with population of 1.1 Crore is the most populated district of India.

• North Twenty Fourth Pargana in West Bengal is the second most populous district of India with a population of 1.08 Crore.

Article 122 of the constitution provides for the courts not to investigate the proceedings of Parliament. Article 121 prohibits the discussion of the Supreme Court or any Judge of a High Court in Parliament concerning the conduct done in the discharge of its duties. Article 126 deals with the appointment of the acting Chief Justice.

• Electric current is produced by electric generator.

• An electric generator is a device that converts mechanical energy obtained from an external source into electrical energy as the output.

Lactic acid is formed in the muscle during excessive workouts.

* During exercise, body taps into anaerobic metabolism, it uses the body’s supply of stored sugars, known as glycogen, without the need for oxygen and one of the byproducts of this process is lactic acid.

* Lactic acid is produced industrially by bacterial fermentation of carbohydrates, or by chemical synthesis from acetaldehyde.

* Swedish chemist K W Scheele was the first person to isolate lactic acid in 1780 from sour milk.

* It is an acid present in milk; hence, it is also named as ‘Milk Acid’.