1)your fiancee along with her family members can come to India on tourist visa
2) you cna send an invitation letter to visit india . it can be supported by a notarised affidavit inviting them to visit india for period mentioned in the letter
3) you can get married under provisions of special marriage act in india
4) you required to file a notice of intended marriage with a Marriage Registrar in Jharkhand . That notice is required to be published for the stipulated 30 days. At the end of the 30 days the Marriage Registrar is free to perform the marriage.
The notice of intended marriage can only be given in India, if at least one partner is permanently and the other partner temporarily resident in India.
After the stipulated waiting period of 30 days the marriage can take place in India. Under the Special Marriage Act, 1954 a certificate showing the signatures of the persons married, the registrar and the witnesses will be issued. This Certificate is required as proof of the marriage and when applying for a visa to for a foreign country.
The following documents are required for both the partners:
a valid Passport
original Birth Certificate showing parents' names
if the person concerned is widowed, the original death certificate of the deceased spouse
If divorced, copy of the final decree
documentary evidence regarding stay in India of the parties for more than 30 days (ration card or report from the concerned SHO)