The King of Diamonds) is a 1991 Indian Marathi-language family drama film directed by Sanjay Surkar and produced by Smita Talwalkar, starring Dilip Prabhavalkar, Ashok Saraf, Smita Talwalkar and Sulabha Deshpande.

[1] The story revolves around the mentally ill Nandu (portrayed by Dilip Prabhavalkar) and his life journey.

Dilip Prabhavalkar received the Maharashtra State Award for Best Actor for his depiction of a youngster with developmental disabilities named "Nandu," conveys a great deal of innocence.

The film's highlights include his stage performance of "Mi Asa Kasa Vegala," (transl.

[2] Chaukat Raja was a commercial success and is regarded as a classic milestone in Indian cinema.

Durga Mavshi lives with her adult intellectually disabled son Nandu in a Chawl in front of Meenal's apartment building.

Meenal called Nandu her Chaukat Raja (King of Diamonds in English) because of his versatile but uncommon personality.

Scared, Meenal seeks help from Director (Reema Lagoo) of a school for intellectually disabled kids.

Understanding his mistake, Rajan follows Nandu to the Chawl, to find him curled up in bed, helpless, crying his eyes out.