Are you all set to forgive Mumbai attack and offering the power?
Do you first have enough to supply 24/7 in your home country?
If you live in a normal town in India then you will without any doubt curse the government for this offer.
It may build positive relationships with the enemy country. But you will lose your vote bank.
http://www.rediff.com/news/report/pak-should-buy-power-from-india-nawaz-sharif/20120329.htm