B.Tech Computer Science and Engineering

No, there is no seat reserved for any of the Polytechnic colleges to take admission in COEP for direct 2nd-year degree courses.
The admission procedure is as follows
Your percentage score of Diploma is the only criterion for admission to COEP. Of course, there are Caste based reservations in these seats as well. If a branch has an intake of 60 seats in the 1st year then there are 20% of seats added in that class at the start of 2nd year. This makes 12 seats for Diploma graduates in a class having a strength of 60.
For COEP Mechanical, there are 120 seats at 1st-year intake so there are 24 seats (20%) at the start of 2nd year for Diploma students.
Here is the link you should refer for college-wise cut-offs, deadlines, available seats, and all the things related to Direct 2nd-year admission to Engineering courses.

CSE is one of the most sought-after programs these days. India being global hub of software and back-office industries, this field has immense job opportunities. You must know the parameters on which to compare. Some are mentioned as follows:
Curriculum: The course curricula of any tech degree must be very unique and dynamic. It must be developed with extensive consultations with industry. Tech trainings: The must students undergo many training like cutting edge technologies of SAP, Workday, waterfall other MOOCs, Advance Excel and many more. These skills come in handy for the students not only at the time of interviews and tests but also throughout their careers. Soft skills: There must be a dedicated effort by college/university in continuous improvement of personality, soft skills, professional ethics, interview skills, public speaking, presentation style development etc. In students. These are must for placements as well as performance in the jobs. Exposure: The students must be exposed to large number of guest lectures and talks by industry experts, large number of events in university to enhance their organizing and networking kills, large number of social work initiatives to develop the right orientation and many more.

CSE is one of the most sought-after programs these days. India being global hub of software and back-office industries, this field has immense job opportunities. You must know the parameters on which to compare. Some are mentioned as follows:
Exposure: The students must be exposed to large number of guest lectures and talks by industry experts, large number of events in university to enhance their organizing and networking kills, large number of social work initiatives to develop the right orientation and many more. Curriculum: The course curricula of any tech degree must be very unique and dynamic. It must be developed with extensive consultations with industry. Tech trainings: The must students undergo many training like cutting edge technologies of SAP, Workday, waterfall other MOOCs, Advance Excel and many more. These skills come in handy for the students not only at the time of interviews and tests but also throughout their careers. Soft skills: There must be a dedicated effort by college/university in continuous improvement of personality, soft skills, professional ethics, interview skills, public speaking, presentation style development etc. In students. These are must for placements as well as performance in the jobs.