Amit Grak said:
Can any body tell me how many points are there for 3 years diploma in civil engineering for express entry.............................
You need to get your degree assessed by an organization like WES to determine what the Canadian equivalence is.
Based on your WES report you can then go ahead and choose the correct option in your profile.
Since different types of degrees from different countrues are sometimes judged dufferently by WES, it is hard to give you an exact answer. You will have to go and get your ECA done to know for sure.