I have just completed BE CIVIL Engg.Finding difficult to go for site engineer position due to personal reason.Iam in a dilama whether to go in core civil field or software field. Pl.give me advice.

#-Link-Snipped-#‍ - I'd recommend having a look at the requirements and responsibilities of the jobs in core Civil engineering. That should give you some idea about the kind of job you'll get. If those don't look suitable, you might want to opt for software field. 

You haven't mentioned whether you are familiar with software programming languages or say any Civil / Structural engineering related software applications. If yes, that should be a good start.