Notice of intended marriage has to be signed by both parties
2) your fiancée can forward papers to you for your signature
3) have it attested and return the papers to your fiancée
Documents needed for marriage in India between an Indian and foreigner:
birth certificate
Passport
You will need a visa for more than 30 days
Proof of address
Certificate of No Impediment/Single Status Affidavit
Passport sized photographs