INR were always available at bigger forex shops at atrociously stupid rates. I recall selling some INR to DM in Berlin in the late 80s. That is form the time FERA and FEMA were in full force. The ED paid a visit to us in 1985 in the village and confesticated a grand sum of 300 DM from my mother. That FERA case took 10 years to resolve 🤦‍♂️