/> They play antagonistic villains in Agneepath. But in real life, Sanjay Dutt and Rishi Kapoor have discovered a new warmth and friendship that goes beyond the success of a collaborative film.

Sanjay Dutt's fondness for Ranbir Kapoor is commonly known in the film industry. In fact as this is being written, at least three major filmmakers have been given the responsibility to devise a Dutt-Ranbir project to be produced by Sanjay Dutt Productions.

But Ranbir's dad Rishi Kapoor and Dutt were until recently, at the most polite acquaintances. In fact the last film they had done together was Sahibaan 18 years ago. Now while working together in Agneepath the two actors seem to have discovered a mutual fund of fondness.

Just how much the emotional Dutt appreciates his new friendship was evident when on Saturday night he simply walked into Rishi and Neetu Kapoor's Pali Hill residence with his wife Maanyata and a bottle of wine for a celebration of their mutual success in Agneepath.

The on-the-spot party went on till the wee hours of Sunday morning with some of Rishi's close friends joining in. At some point during the evening Ranbir also joined his Dad and mentor Dutt, though we hear, he desisted from drinking in front of the seniors.

The Dutts left only after extending an invitation to the Kapoors to join the Dutts at a party on Sunday evening.

That's right. The Dutts host a Agneepath success party on Sunday evening.

Says a source, "Sanjay, Rishi and their two wives had themselves a ball on Saturday night at the Kapoors' residence. Though Rishi likes to get to sleep by 10. 30-11 pm he was up with the Dutts till almost morning. Though Rishi and Sanjay both play arch-villains in Agneepath there is no sense of competition between them. They are baddies who are buddies. "

When we contacted Rishi to confirm the impromptu party he said, "On Saturday night Dalip Tahil who loved me in Agneepath came home. A few of my friends were already here. And lo and behold! In walks Sanju and Maanyata for an impromptu celebration. It was very sweet of him. We were two villains rejoicing our villainy together. "

Incidentally Saturday night also saw Hrithik Roshan hosting a party to celebrate the success of Agneepath.