Which optional subject should I prefer in my second year engineering?

Hi Annu Priya, As you are in Electronics Engineering if you are looking for optional courses which you can do along side your graduation, You can go for certificate or diploma courses in Hardware & Networking, VLSI, Embedded systems, Wireless Communication, Ship Designing etc. provided by the Insti

You can also go for Artificial Intelligence & Robotics. There are various institute which offers 1-2 month course in Summer Vacation even IIT-B offers this

you can opt Digital Image Processing,DSP,Power Electronics,Advanced Control System,Advanced Operating System/TCP-IP etc actually you are not mentioning ur stream than how any one can suggest you though I am given you few popular subjects which are integrated with all leading engineerin stream

electrical engineering and mathematics(engineers are good in maths). for preparation, i would say join some classes like RAUs in delhi etc and prepare. they not only give you course but also proper and structured guidance. may be for the aptitude test, you can try out RS Agarwal for quants and Arun

i cant say u because i am 1st year eng