Hi Soni!This is Neeraj Atluri.Congrats for scoring a good rank in JEE MAINS. I will give u simple solution for your question.You will definitely get a seat in engineering, but it may or may not be the good one.If you prepare for one year(Long term) then one year time will be wasted, but u have a scope to get into a good college.Even though time will be wasted you can enter into a good college but take decission by consulting your elders.