In India, the patent regime is statutorily based on the Patents Act, 1970 and the Patents Rules, 2003. Section 2 (1) (b) and Section 73 (1) of the Patents Act, 1970 and Section 3 (1) of the Trade Marks Act, 1999 provides that the Controller of Patent is the Controller General of Patents, Designs and TradeMark. The Controller is the principal officer responsible for administering the patent system in India. The Controller is the overall supervisor of the four Indian Patent Offices in Chennai, Delhi, Mumbai and Kolkata.