Hey This is an interesting topic. I have married a person out of my country, and not my religion too. We loved each other so we got married and we are happy, but i kind of understand why parents oppose to intercaste marriage. They have a better understanding that if you marry your own type it is easier to adjust specially in a place like Nepal. So, as they love you sooo much,they are only concerned about you and your spouse and how you can adjust in each other's community. If you are strong enough to adjust you should convince your parents and both you and your spouse should work on keeping both sides of the family happy. Once you work on this, nobody will ever bug you about your marriage.