Hey , First of all you didn't mention that you want to take admission in govt engineering colleges or private engineering colleges . For both you have to clear there respective entrance examinations. For IITs ,NITs you have to qualify Joint Entrance Examination (JEE) which held twicw a year. For state Govt colleges you have to clear respective state's engineering entrance examinations . Now , for private institutes either they conduct there own entrance examinations or they take admission via JEE or state entrance examinations. After you qualified the examination you have to go through the counseling . In counseling you have to select your stream and college according to your marks obtained. This is the seat allotment process , after which you can admission in the allotted seat.
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