The CBI on Monday moved the Supreme Court seeking death penalty for Babbar Khalsa terrorist Jagtar Singh Hawara,the mastermind in the killing of Punjab CM Beant Singh in 1995,saying the offence falls under the category of rarest of rare cases. The CBI has approached the SC challenging the Punjab and Haryana HC judgment which had commuted the death penalty of Hawara on October 12,2010 and had sentenced him to life imprisonment till death,holding that it was a borderline case for capital punishment. We are pressing for death penalty on the ground that the case falls under the category of rarest of rare cases. It was a most serious offence where 17 people were killed,including a chief minister of a state,and 15 were injured, Additional Solicitor General Harin P Raval said.