Name the key to Indian pre- historic archaeology :

Name an Indian King whose 500th coronation was clebrated recently.

Who was the first non - congress Prime Minister of India ?

The increase in agricultural production in 1971 resulted in a wheat revolution. it is referred to as the Green Revolution .Who was the Prime Minister at that time ?

Dr. Hermann Gundert who enriched Malayalam language is a :

The Non- Brahmin Movement begun by Dr.T.M.Nair become a Mass movement under :