To sway public opinion, to create a goodwill among a people, to showcase Indian culture and traditions - then definitely YES. Soft power is indeed a potent force to reckon with and to be used wisely.
There was a time when others thought of India as a land of elephants and snake charmers - thats precisely the image that people conjured up in their minds when spoken to about India. Perceptions change. Thanks to advances in communication, media and faster travel. People now associate India with computers, whizkids, software professionals, doctors and quality education, not to mention the omnipresent, ever beloved Bollywood! Now the general perceptions about Indians is "Oh, you are Indian, so you know computers" or "are you or someone in your family a doctor?" - not to mention some people going to the extent of asking "do you do the song and dance routine like in Indian movies to woo a girl?" Did I forget the colorful, vibrant and joyous nature of our various traditions and religious festivals and the overwhelming aromas of our finger licking cuisines from different parts of India?
This soft power has definitely changed perceptions about India and Indians the world over! And its trickling into the diplomatic relations between India and various countries.
"We are like this wonly" is going to stick and people respect us for that!