01- India’s longest tunnel is in the state of Jammu and Kashmir.


02- Anthracite is the best kind of coal.


03- The words of socialist, secular and integrity were added in the introduction of the Constitution by 42nd amendment.


04- Zero and decimal are invented in India.


05 – Asa given the initiation by Upgupta, Ashoka adopted Buddhism.


06- The number of Upanishads is 108.


07- The shape of a bull on the seals of the Harappa civilization is found.


08- There are 1017 Sukta and 10 Mandals in Rig Veda.


09- Rig Veda is considered to be the oldest Vedas.


10- AC is replaced by rectifier in DC.


11- The name of India is Hindustan Pada, due to Hinduism being pronounced by the Persians in Sindhu.


12- The huge grain garnet found in Mohanjodado is the largest building in it. Its length is 150 feet and width is 50 feet.


13- The largest unit of distance is parsek.


14- The unit of claim is Pascal and Bar.


15- The unit of frequency is measured in Hertz.


16- The longest river in the world is Nile River.


17- The election of one-third Rajya Sabha members happens every two years.


18- Nathula Pass is in Sikkim.


19- India’s terrestrial border is 15200 kilometers.


20- Width of Broad Gauge railway line is 1.676 meter wide.