"We are preparing to issue to a red-corner notice against Bittu Singh, an event organiser. We are co-ordinating with Interpol in this regard. We have sufficient evidence against Singh. Let him defend himself after we catch him," Mumbai Police Commissioner Rakesh Maria said.
The city's top cop warned that nobody would be spared for committing crimes. "Though the culprit is abroad, we will reach and catch him or her," the officer said.
The Mumbai police is touch with security agencies in Delhi that co-ordinate with the Interpol.
Maria said that the crackdown on underworld sympathisers, supporters and informers in the city has been initiated. "We will not tolerate underworld activities. We are carrying out an all out crackdown on men linked with the underworld," he said.
Throwing light on Bittu Singh's role in the offence, another police officer said, "Singh had spoken to Morani seeking contacts to organise global shows of 'SLAM! (Sound, Light, Music, Action) The Tour' to be held to promote Shahrukh Khan's forthcoming movie Happy New Year".