Since Dr Bora is offline and you have mentioned that you are waiting since last 3 days I will try to answer your question.
Cymbalta (Duloxetine) is available in India with a brand name of Sympta (20,30,60 mg strength) or Symbal (20,30,40,60 mg strength tablet). There are various other companies also who are manufacturing this drug. You can simply approach any chemist shop and ask him for the salt name Duloxetine.
Duloxetine brands in India
Similarly Neurontin (Gabapentin) is also available in India and is manufactured by several companies for example Capsule Rejunate (Gapapentin 300 mg capsule).See brands of Gabapentin
I hope, this answers your question regarding medicines availability.
Now regarding that minor operation, it is very hard to tell, who can or can't do that operation. You may contact various big super specialty hospitals in Bombay (Mumbai) and I am sure you will find someone who can do this minor operation
.A very good idea could be to contact the leading diabetologist working in these superspeciality hospitals and they will guide you accordingly.Hospitals in mumbai
I hope this helps.
Please feel free to ask if you need clarification/more information. Kindly click the GREEN ACCEPT BUTTON if you are satisfied with the answer. POSITIVE FEEDBACK and BONUS are warmly appreciated.