It depends upon the JEE Main and JEE Advance cut offs, If You manage to qualify the exam by achieving the cut off, You can apply for JOSAA Counselling. It should be noted the cut off for SC category is lower than the general category
However It is usually advised to fill the choices as per the preference of colleges and departments, for example CSE in NIT Trichy is your priority followed by CSE in NIT Warangal, you can fill CSE at NIT Trichy at serial number 1 and CSE at NIT Warangal at serial number 2 and so on and so forth. However to get any NIT, you must have qualified JEE Mains and to get any IIT, you must have qualifies JEE Advanced

But the previous cut offs of colleges should be taken in consideration, it is better to research over the cut off of colleges then make a preference list of colleges and fill accordingly

For the college preferences and the courses provided by these colleges and to know which colleges participate in the JOSAA counselling, please go to the below mentioned link: https://engineering.careers360.com/articles/josaa-participating-institutes/amp

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Hello,

As you have attempted for the JEE main entrance examination which a national level exam and also one of the prestigious exam in India. Now the marks which you have scored in your boards is a good one and also your JEE percentile is a decent one and as you are looking for ECE or Electrical related branch which is a good choice because this are one of the every green branches if Engineering and has a great future scope. Now i would say you that getting any top level of colleges in this marks would not be easy at all but definitely you can try in many more medium level of colleges in India where you will surely have a very good scope of securing admission. Now before that i will suggest you to firstly calculate your rank using rank predictor so that than you will more clarity that which colleges to approach for admission.

So the below given link can be used to calculate your rank:

After that you can again use the below for checking different colleges according to your marks and preference so that it will make your work mire easy:

https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer

Thank you..