Wife is hiding passport details

No one can interfer between the husband and wife, which is based on total transparancy, mutual trust, total faith, absolute loyality and sincerity towards each other.

Do you have any dispute where you want to check her passport? What is your motive to see it?

You may answer the query raised by expert Dr. Vashista that why do you want to know the details?, is there is marital dispute pending in any court?, How is the passport details going to help you? have you tried RTI route?, you may adopt this or consult with your lawyer for further issues.