Natya Shodh Sansthan, Kolkata is Indian's largest repository of archival material and documentation covering the entire history of Indian theatre in all its different languages, with special emphasis on folk and traditional forms and post-independence Indian theatre, in the form of original manuscripts, books, periodicals, newspaper clippings, reviews, audio recordings on gramophone discs and photographs, slides and audio cassettes, video recordings, films, stage models, production scripts, masks, costumes, stage ornaments, publicity material - e.g. folders, posters, handbills etc, and exclusive recorded interviews with theatre personalities.

Natya Shodh Sansthan's activities include :

Research in and collection of a wide range of theatre materials.
Holding seminars and lecture - both at the academic and outreach 
  levels covering theatre and related arts and forms.      
Maintaining and annotating its collection.

Services :

Members and visiting scholars are welcome to read, study, watch,  
  use and copy (with necessary legal restrictions) the materials 
  stored in its archives and library. 
Make enquiries for information on any issue associated with       
  theatre, and receive inputs from Sansthan's in-house crew 
  and faculty.
A vital of outreach facilities, in the form of screening/displaying 
  films, slides etc. in Sansthan's collection, supplemented by lecdem 
  facilities.