Which state of India has the highest rail line?

In which century Kalhana's Rajatarangini was composed?

Which is the biggest item of expenditure of the government in the revenue account?

Who introduced the concept of Elasticity of Substitution?

Adjustment is the process by which a creature balances situations that affect the fulfillment of its needs and requirements. Is this statement?

Who wrote 'Ashtadhyayi'?

When was the Battle of Plassey?

What was the atomic bomb thrown for the first time?