For admission into IGNOU, for course in theatre and performing arts,  you have to register online from its official website. The basic eligibility is 10 th pass. The certificate for performing arts- theatre course fees is 4000 INR.

You register here

https://ignouadmission.samarth.edu.in/

I am providing you with the official website link, you will get the further details here.

http://www.ignou.ac.in/ignou/aboutignou/school/sopva/programmes/detail/331/2