Death penalty is very rare since 90s. Most probably if found guilty they will serve 7 years.
Actually that has changed now, murder usually does get a significant sentence, not 7 years. And life imprisonment has actually been changed to mean actual imprisonment for life - it used to mean a 14 year sentence earlier.
But death penalty, as you rightly said, is getting very rare. In fact, only one person has been hanged in India in the past 12 years.