Delhi is very humid subtropical/tropical climate, so there will be lots and lots of interesting bananas. The only real problem is that they won't like European climate (it's either too dry or too cold). You might wanna check also some cold hardier variety. Delhi is probably the same climate as Hong Kong, Sao Paulo and other really big almost tropical cities, so you should be able to find something. Transportation and smuggling will be however difficult.
Here's something about where you'll be going:
Humid subtropical climate - Wikipedia, the free encyclopedia