"Expect big brother Mukesh Ambani, fuming at Anil's plans to seize control of African mobile operator MNT, to enter stage left with another attempted spoiler," said the Financial Times, adding their feud, with daggers drawn, could make another passable Bollywood movie.

The younger brother, however, continues to look for support from his mother Kokilaben, who was by his side when Anil recently co-hosted a dinner in London with Barclays chairman Marcus Agius for more than a hundred guests, including MTN chief executive Phuthuma Nhleko.

Corporate watchers have already taken it as an indication of the mother's tacit support to the ambitions of the younger son. And that she shocked everybody by visiting family friends in the US and skipped the elder son-controlled RIL's recent annual general meeting is seen as an indication that Kokilaben is tired of the renewed slugfest.

No one knows whether she will eventually come out in the open - like she did in 2006 for the first time after the death of her husband in July 2, 2002 - and intervene to silence corporate India's worst, bitter battle between the brothers over a single issue: Who will be Number One.