how right is when u say there were no blasts untill 1991...muslims have been on the path of aggression as soon as they formed in this world. The millions of Hindus killed in India in the middle centuries by the muslim invaders and harrasment and torturing given to the majority hindu population is a strong proof.\
Islamic terrorism took strong hold in the 60's when pakistan's ISI's(dominated by punjabi muslims) sole aim was to brainwash mojahirs and pathans(afghani and pakistani) to take up terrorist activities against India to de-stabilise it. Pakistan knew that India was invincible in long term wars. Blasts were there in India since the 60's perpetuated pakistan backed outfits like SIMI. Your knowledge of things only is getting back to as far as 1991 ..mr.muslim under the name Ganesh.