My friend,
I am reminded of the story of Gauri, who changed from a dark black-blue lotus color into a golden color.
By this same story has a mate and companion been cast out by your family, or your assumptions. This woman is as pure as her desire to make you happy and found a family with you.
Have you asked her in depth about her faith and willingness to ascribe completely to Hinduism? Where family is concerned, you must provide unity for the children to grow up in a stable and wise household. You may find upon asking her that she is completely capable of adapting her catholic ritual to your shared needs as a hindu family.
Check with the temple locally where you live, if they have one. I can almost gaurantee if you are in the US your match can be blessed in Heaven and Earth. Have you asked her to pray with you often?
It is natural of your folks to have concerns about keeping the faith alive. Families have a natural cycle of faithfulness meaning that one generation may be devout and the next rebellious, but they always go back and forth instead of being continuously "diluted" into faithlessness. This family at a distance remains important to you of course, but you have to realize that you are bringing new blood and new ideas with your wife that will help your family to be more resilient as time goes by. When your parents see that your children are faithful, their doubt about "purity" will be removed.
My generation was not ready to welcome spouses who convert. But I pray the next one will be more accepting.
