<P> The RBI has four zonal offices at Chennai , Delhi , Kolkata and Mumbai . It has 20 regional offices and 11 sub-offices . Regional offices are located in Ahmedabad , Bangalore , Bhopal , Bhubaneswar , Chandigarh , Chennai , Delhi , Guwahati , Hyderabad , Jaipur , Jammu , Kanpur , Kochi , Kolkata , Dewas , Lucknow , Mumbai , Nagpur , Patna , Dehradun and Thiruvananthapuram and sub-offices are located in Agartala , Aizawal , Dehradun , Gangtok , Imphal , Panaji , Raipur , Ranchi , Shillong , Shimla and Srinagar . </P>
how many branches of reserve bank of india in india
20 regional offices and 11 sub-offices