Well to join diploma 10 class /ssc is enuf
as u hold+2 go for degree. As its better than diploma
a bsc (electroncs,maths ,computers) or btech will fetch u good career for ur options
btech in mech.civil electrrical, electronics, computr science, instrumentation, petroleum,production etc... Are the best courses As you completed 12th so.. No need to go for Dipmloma... Because its a 10th base course.. after doing diploma of 3 years
you will be on the same platform where you are now... suppose if you will do diploma in engineering then you will become
a jonior engineer... so i want to sugesst you just go for bacholar degree..
so why waste time for that... Go for bacholar degree like B.tech or what you want to do...
and make your future bright...