What is this insect from India called?
It appears like a pellucid hawkmoth (Cephonodes hylas; also called coffee bee hawkmoth). This belongs to the same family as the hummingbird hawk moths.


  
  From wikipedia


Many photographers have misidentified this one as the hummingbird hawkmoth (See the picture and the link below. So if you google hummingbird moth india, you'll get pictures of the pellucid hawkmoth too).


  
  Courtesy: Nitin Prabhudesai