بسم الله الرحمن الرحيم
(Fatwa: 1178/1157/L=9/1438)
If the mature boy and girl of the matching category (kufu) solemnize their nikah in the presence of two witnesses then their nikah shall be valid according to Shariah. However, it is not desired to do nikah secretly, sometimes it creates other problems. Also the Hadith asks to do nikah openly. Thus it is better that the nikah is solemnized with the consent of both the family openly and until the nikah is not performed till then you should avoid meeting and talking etc.
Allah knows Best!
Darul Ifta,
Darul Uloom Deoband
