Hi

Start with Networks which is easy, then take on Digital Electronics. Now, practice Engineering Mathematics which is very necessary. Then take on Signals and Systems and Control Systems. They are nothing but Mathematics, so just practice more and more. Study Power Electronics slowly as it is really scoring. Then coming to Analog Electronics and EMF, give it proper time. Do not miss out on Op Amps. Don't study Electrical and Electronic Measurements in the last. Skim through important topics of Machines and Power Systems.

Prepare crisp notes with numericals and revise.

Hope this helps.

Cheers!