ShwetaRai, Since I am in a different culture than you, I cannot advise you as to what you should do.
As long as his hands are well kept and clean, nothing can happen from fingering. It can be very pleasurable and give you an orgasm. Normally your clitoris is much more sexually sensitive than your vagina. So rubbing it is much more likely to give you pleasure than fingering yout vagina.
Fingering and masturbation can rupture your hymen. This however does not mean that you are not a virgin any more. It is also not a given that you will rupture your hymen, especially at your age your hymen is very elastic.
If he penetrates you with his penis, you will be for sure not a virgin any more and your hymen will almost guaranteed be busted.
If you decide to have sex, you need to protect yourself from pregnancy, infections and STDs. You can avoid pregnancy by not having sex or making him wear a condom and/or taking birth control pills. You can prevent infections and STDs by avoiding sex or making him wear a condom.
The safest by far is to take the birth control pill and make him wear a condom.
Do not feel pressured to allow him to do anything, especially if it is going to cause problems for you later. It should be a decision you can live with. Make it clear to him what you will allow and what not.
Take care and please be very careful!