You have mentioned that you were kidnapped and your documents, including passport, were snatched. I hope you would have filed a police case in that incident. If not, file that case, and report to the police about how you have lost the passport. The police can try to recover the passport from those responsible people.
In any case, if your passport is lost, you are required to immediately inform the nearest police station and and the passport office.
Thereafter, on the basis of the lost passport, you can apply for re-issue of the passport. You may contact the passport office for details or search the website http://passportindia.gov.in/ for more details.
Dr. Ashok Dhamija is a New Delhi based Supreme Court Advocate and author of law books. Read more about him by clicking here. List of his Forum Replies. List of his other articles. List of his Quora Answers. List of his YouTube Videos.