It blends the spirit of auteur films with the conventions of mainstream Hindi cinema and its commercial success will be an acid test of saleability of a serious artist.
Ghosh is, of course, not the first filmmaker of his ilk who has given this sort of balancing act a shot.
Govind Nihalani, who tried his hand at an out-and-out commercial Hindi film with "Takshak," returned to experimental moviemaking with the English-language "Deham", a screen adaptation of an award-winning allegorical play about the sale of human organs.
Neither of the two Nihalani films clicked at the box office. A similar fate befell "Is Raat Ki Subah Nahin" by Sudhir Mishra. The film garnered rave reviews, opened well at the box office, struck a chord with audiences in some urban pockets but then petered out.
And who can forget Shyam Benegal, the earliest pioneer, who made two completely different films virtually at the same time - "Zubeidaa" and "Hari Bhari" -- in the late 1990s.
Notwithstanding the ups and downs that these filmmakers have encountered with their experiments with disparate genres, they are all still in the thick of the action, says a trade observer. They have never had it so good: the marketplace has expanded dramatically in recent years and there is space for a wider variety of cinematic idioms than ever before.
The sooner the gap between the chroniclers of reality and the dream merchants is narrowed the better it will be for Hindi cinema. Else, we viewers will continue to be subjected to films like Anil Sharma's "Ab Tumhare Hawale Watan Saathiyon".
Sharma obviously set out to on a mission to bash Pakistan but changed middle track when the subcontinent started speaking the language of peace.
The fate of "Raincoat" and "Ab Tumhare Hawale Watan Saathiyon" at the box-office will play a crucial role in how Hindi cinema is shaped in 2005. As things stand, we may be once again looking towards Yash Chopra to save the industry from its financial rut.