Of course if it was a Muslim, especially one with a beard, he would have been more of a probable suspect. Why not? White/Black Americans have not yet been involved in any of the terrorism in India. It is only the Islamic terrorists who have caused all the major bombing of civilians. As long as this is the case, it is very appropriate to suspect Muslims more than any others.
Unfortunately, because of some Islamic terrorists, some innocent Muslims sometimes come under suspicion. This cannot be avoided. Instead of complaining and being defensive, all good muslims must come forward to proactively admit the cancer that is growing in their community and help the nation to catch these terrorists and weed them out. It is their national duty, besides being in their own self interest.