Ashim Aluwalia is a Mumbai-based documentary film maker whose film "John & Jane" was shown at the Berlinale 2006. See here some reviews:

http://john-and-jane.com/images/reviews/05.html

http://john-and-jane.com/images/reviews/11.html

Surabhi Sharma is a filmmaker based in Mumbai who is tackling mostly social issues in documentaries. Take a look at her work and thought on...

http://surabhisharma.wordpress.com/

http://vimeo.com/user5794134

Cinema City - 
Due to the 100 years anniversary of the film city Mumbai, the group Majlis initiated the project Cinema City, analyzing the influence of the cinema on citizens and their city.

http://projectcinemacity.com/

http://www.goethe.de/ins/in/lp/prj/kus/bil/mum/de9495654.htm

Film Maker

Another young film maker is Anand Gandhi. One of his internationally reknown works is Continuum which he directed together with Khushboo Ranka. For seeing the whole (not so very) short film you have to go to youtube and proceed with Part II etc.

"Right here, right now"

Film Maker

One of my favourite young Indian film makers is called Vasant Nath. Here you can see some of his work:

(it seems Blogger doesn't like to embed vimeo. therefore, find here a first you tube link. however, I advice checking the vimeo links below!)

Shanu Taxi: 

(on youtube you have to proceed to the following parts on your on clicking through the list of offered videos to your right!)

http://vimeo.com/34008278

 

Sukrit's Sunday:

 

http://vimeo.com/34115553

Experimental Film

Experimenta

Unfortunately not based in Mumbai, but Experimenta is an interesting source of information on the experimental movie and video scene in India:

http://experimenta.in/about-2/

(photo source as well)

"Experimenta India is an artist run platform that encourages uncompromising, fresh, compelling and critically urgent experimentation with the moving image in India.

Founded by filmmaker Shai Heredia in 2003, this groundbreaking platform has over the years played a significant role in countering the hegemony of the mainstream Indian film industry. Through nurturing an alternative community that reflects upon, and examines the different traces of Indian artists’ film and video, both historical and contemporary, we engage in a series of projects that bring together Indian and international film artists with similar creative and socio-political concerns.  Besides curating EXPERIMENTA, the critically acclaimed bi-annual festival, we also showcase Indian experimental film and video at international film festivals and art venues like the Tate Modern (London), the Berlinale Film festival (Berlin), Images festival (Toronto), EXiS festival (Seoul) amongst others.

While bringing Indian moving image art into international prominence, we have also hosted International artists residencies in Mumbai and Bangalore, curated regular screenings and conducted film art workshops across India. Ultimately as an alternative community we have played a significant role in evolving independent, new and radical discourse for film as an art practice in India."

Experimental Film  

Amrit Gangar and Cinema Prayoga 

Amrit Gangar
(source: ncpamumbai.com)

Amrit Gangar is a Mumbai-based author, curator, short filmmaker, and inventor of the term Cinema Prayoga.

http://experimenta.in/texts/interviews/amrit-gangar/

http://www.ncpamumbai.com/event/roopantar-%E2%80%93-adapting-theatre-cinema-0

 

Child On Chessboard; Vijay B Chandra
(source: experimenta.in)

Here you find articles on Cinema Prayoga:

The Hindu – Cinema of Prayoga

http://www.avikunthak.com/Prayoga%20Website/Home.html

Film History

The Media Lab of the Jadavpur University is archiving old newspaper articles and other information on Indian Film history and more:

http://www.medialabju.org/icinema/

The Media Lab Website

And other interesting material on Indian film
"Our most interesting film maker"