Hi Aspirant,
Since you have mentioned Government Polytechnic College Dumka in tags , so I assume you are talking about the eligibility criteria for admission into this college only, for the year 2021. The eligibility criteria suggests that the candidate should have passed 10th Std./ SSC examination and would have obtained at least 35% marks in the qualifying examination. Then the admission process is that eligible candidate will appear in the PECE examination conducted by JCECE Board.
For more information regarding this refer the link below,
https://www.careers360.com/colleges/government-polytechnic-dumka
Hope this helps.
Good luck!!