Hello Ashu admission in different polytechnic colleges in UP is done by the couselling board JEECUP across different collages  in different districts .  You can yourself check the opening and closing ranks of various sreams and based on previous year data you can check ,
https://admissions.nic.in/JEECUP/Applicant/report/orcrreport.aspx?enc=Nm7QwHILXclJQSv2YVS+7qMYkJFqElfnj4WD9Sq/X3lU3FvfMVWyPbBFbdSRv44K