It depends upon various factors like whether you are from Home State or Other State and what is your category i.e whether General or SC/ST or Vimuka Jati, etc.

But in general considering general category, you need to get a rank under 4000 to get CSE in PCCOE.

If you are from SC then you need to get a rank under 24000.

For ST category, a rank under 34000 will do.

All the best!!