Inter-religious marriage between Hindu wife and Christian husband. Husband does not follow Christianity. Wife is moderately religious and follows few Hindu rituals or celebrates few festivals. Husband does not interfere and if needed or asked for help is willing to do that. Husband also likes to visit the temples when wife does it with the kids. Husband's parents gave him 2 names 1 Christian english name from Bible and 1 Hindu God name. His official full name is Joshua Senthil Peter (not the real name - just an example). He is referred with his Hindu name 'Senthil' by parents, uncles, aunts, neighbors, wife, all wife side relatives, etc. but in office all American colleagues call him Joshua. When he introduces himself to desis folks outside office, he tells his Hindu name as he is used to all Indians right from his childhood calling him with that name. Now the problem is, no one can tell he is a Christian unless explicitly told. So it comes as a shock for people if told explicitly after first 2-3 meetings. So should he always introduce himself by telling them to call him with his Hindu name but make sure during the first meeting he tells them that he is a Christian? Is he obliged to mention his religion? if not then how to deal with the folks who get shocked if not told the religion in the very first meeting.