Sajhamitra you probably do not know that story is a hoax. Religious fanatics use smart people like Einstein and make up stories to prove to less smart people that "look even smart scientists believe in god and you should too."

The less smart people will believe them feeling helpless and out of logic to question something supposedly said by a great man, but semi-smart people will try to verify it before believing in it blindly.

You can verify that this story about Einstein is a hoax

http://www.snopes.com/religion/einstein.asp