Customs of dating
In general, the people of India tend to marry within their community whether that community exists within India or those of Indian decent living in other countries.
While arranged marriages are still common in India, love marriages have gained in popularity.
Although India has experienced changes in its traditions in part due to Western influences, the culture has held steadfast to many of its traditions and customs.
What applies to one region of India may not apply to another region.
If they are allowed to date they are generally only allowed to date other Indians who either are family friends, same last name, same village, same religion, or some type of doctor.
For many parents the disproval rests on the fear that the values and traditions of a mixed relationship will negate the passing down of religious and cultural values as well as traditions for future generations and as a result would end that legacy.
However, in Western society, we also are free to choose our dating partners.
Dating for this purpose would not be appropriate in India.
Fortunately, the Internet makes it easier to connect with other Indians who share your religion, cultural values and life goals.
In this sense you can target your search in a way that would never be possible off of the Internet.
You may find that the right mate for you is someone that you would never otherwise encounter in real life.
Many Indian parents and Indian society don't believe in a "trial and error" approach to love. Indian men are more likely to date outside of India than those living in India.
Since dating is not a customary practice in India, you may discover that Indian men are not as savvy in the dating practices as those cultures where dating in encouraged.