Hey there the previous year HBTU, kanpur  jee main cutoff for sc category for the respective branch are as follows - 

Branch                         closing ranking

1. Computer engineering       116638

2. Electrical engineering          118275

3. Information technology        143134

4. Mechanical engineering       150177

5. Civil engineering     152911

Also in 12th boards you have to score 45% in three subjects (PCM) and 40% for reserved category. As you are full filling the both criteria there are high chances of you to get this college. For more information visit the link

https://www.careers360.com