My mother lost her son (My brother) at 17 years old to a drunk driver, I will tell you this he could of married a Jew a Black or been a homosexual if she could of seen her child grow up and to share the love she had in her heart for him.
How ignornat to say if your child marries outside a religion he is the same as dead, try telling that to my mother...
I am sure you will embrace your Hindu son-in-law or daughter-in-law.