I want to ask Dr. Zakir Naik that after engagement as it is tradition of our society and before marriage is it right to do sex? Like there are walis of both bride and groom or both bride and groom personally present and there is exchange of rings.

Assalamu alaikum,

No, It is not permissible.

Dr. Zakir Naik does not answer questions on this site

As young adults, we are constantly reminded to observe abstinence. Most elders condemn the practice of having sex before marriage. For them, virginity is a sacred gift that one should give their future spouse. Women are considered disgraceful to lose virginity before marriage. However, most women today have liberated themselves from the curse of the hymen. No longer is virginity an issue in marriage. We all have to understand that sex is normal like taking a bath everyday or brushing your teeth every other meal.
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Acharity, please realize that the above posters religion is very strict, and the society she lives in is as well.

Sex before marriage in her culture can have dire consequences.