India, Oct. 23 -- Over 40 bullets were exchanged during a shootout in Delhi's Rohini early Thursday, in which four members of Sigma and Company gang, wanted in five criminal cases including four contract killings in Bihar, were killed, senior crime branch officers said.

In a joint operation, the Delhi and Bihar police teams intercepted a Baleno car with fake registration plates, moving from Ambedkar Chowk towards Pansali Chowk on Bahadur Shah Marg, after tracking the suspects' movement in the city through technical surveillance, joint commissioner of police (crime) Surender Kumar said while sharing details of the shootout at the Delhi Police headquarters.

"At 2.20 am, the team members spotted the suspects travelling in a Maruti Baleno c...