Answer:
(Fatwa: 52/52=L/1429)
If both of you are mature (baligh) and good match for each other, then the nikah is valid even if performed in the absence of her family members and without pre-information. But, it is not good to marry in this way. You are advised to win the consent of her family, then proceed to Nikah, so that there is goodwill between the two families.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband
