i am engaged with my cousin since last 3 years,i use to meet him in this era,what is the kafarah f previous meeting in islam after marriage,we had not gone through intercouse yet.

This is the reason Islam has ordered the laws of Hijaab. We are humans and because of contact with the opposite sex, especially non-Mahrams, we get into situations that lead us to sins.

It begins with a small sin and this leads on to bigger sins. Explain to your cousin that there is a need to abstain from sins and to exercise Hijaab. Situations can become worse and the Barkat of Allah Ta'ala can take us to task whensoever he wishes. At the same time, advise parents in some diplomatic way that the Nikah must not be delayed. It is advised that it would be better to perform the Nikah and go to the husband's house at a later time. In the interim, you and your husband can live as husband and wife but still stay with parents till all finances and houses facilities, etc. are arranged.

and Allah Ta'ala Knows Best

Mufti Ebrahim Desai