The invention that played a key role in communication and education.

Where did block printing was first invented ?

Name the first Indian to became the Chief of Air staff.

Johannes Gatenberg was a German _________

Who built the first passenger train ?

When did the first passenger train build?

Most Common method of printing is

Who was the first Chief Election Commissioner of India.

Who was the first commander-in-Chief of India?

Inventor of the first rocket which burnt on liquid fuel.