Amit authors the hugely popular and award-winning Digital Inspiration blog where he writes how-to guides around consumer software and mobile apps. He has developed several popular web apps and Google Add-ons including Mail Merge for Gmail. Amit has written columns on personal technology for major publications including The Wall Street Journal India, CNBC TV18 and The Hindustan Times.
You can read his interview on Lifehacker and YourStory.
This decision tree has been deducted from this speech:
http://www.labnol.org/internet/find-location-of-gmail-sender/21098/