New Delhi, Feb. 19 -- The Supreme Court on Wednesday said it would hear on March 18 a plea filed by Balwant Singh Rajoana, convicted in the 1995 assassination case of then Punjab chief minister Beant Singh, seeking commutation of his death sentence to life term due to the delay in deciding his mercy petition. Rajoana has been incarcerated for more than 29 years, of which he has been on death row for over 15 years. P2...