Draw an area on google map and get a list of all cities covered by that area

Is there any such functionality provided by google maps API, such that I draw a ran开发者_如何学编程dom area on google map and then through some functions in the API, receive a list of all cities and sectors that were covered under that drawn area ?

Any information or help is greatly appreciated.

No, that functionality does not exist (as far as I know, anyway). You can try to fake it by selecting a sufficient number of points in your polygon and reverse geocode them, but obviously that is an imperfect solution in terms of both performance and completeness.

Barring that, there may be resources that you can license for a fee or there may be a resource made available by the government of India that may help you solve this problem. (Or perhaps there is not. I'm speculating.)