Indian Snake Species Identification
Ashok's Bronzeback (Dendrelaphis ashoki). 



This is a relatively small snake (typically 70 cm in length) that feeds on lizards, frogs and small rodents.

More information can be found here or here.

It's range is Southwestern India:



You can differentiate this species from closely related D. girii based on it having a longer "postocular" black line than D. ashoki -- in D. ashoki it stops shortly caudal to the eye (e.g., see here).