An Indian resident can file application for patent at the appropriate Patent Office under whose jurisdiction he resides or has his principal place of business.  For non residents, the address for service in India or principal place of business of his agent determines the appropriate patent office where applications for patent can be filed.

Territorial Jurisdiction of Appropriate Office for the Applicants

Office	Territorial Jurisdiction
Patent Office Branch,  Mumbai	The States of Maharashtra, Gujrat Madhya Pradesh and Goa, Daman & Diu & Dadar & Nagar Haveli
Patent Office Branch,  Chennai	The States of Andhra Pradesh, Kerala Tamil Nadu, Mysore and Pondicherry, Laccadive, Minicoy and  Aminidivi Islands.
Patent Office Branch,  New Delhi	States of Haryana, Himachal Pradesh, Jammu & Kashmir, Punjab, Rajasthan and Uttar Pradesh, Chandigarh and Delhi.
Patent Office, Kolkata	The rest of India.

Designs

The application for registration of a design can be filed at the Patent Office at Kolkata and its Branch Offices at New Delhi, Mumbai and Chennai.