I have completed diploma computer engineering i have Chang the line so which eng. filed are best for me.

Mechanical n civil wanna to take admission in any stream in delhi ncr cl me

You can go for IT, ECE, EE, EEE, Mech.and Civil. You can take lateral entry in second yr. Some institutes conduct test for the same, some give direct admission on the basis of your diploma. Check the websites of some of the universities. Good luck.