Aman, there is as such no fixed cut-off of JEE Mains exam in order to take admission in College of engineering Pune. For admission to College of Engineering, Pune, you need to obtain Positive Composite Score. Positive Composite Score is obtained by adding 50% of JEE Mains Paper 1 and 50% of normalized standard XII (Board or Equivalent examination) marks is Physics, Chemistry and Mathematics (PCM). Based on the positive composite scores, authorities will allot a unique state merit list number to all the candidates.

With your 55 marks, it will be a little difficult to get admission as most of the seats are also alotted with MHTCET score and there is no JEE Mains cut-off available anywhere. With the advent of MHCET, you can take admission in COEP under ALL INDIA seat quota, refer DTE manual for more details. Or you can take admission to COEP under NRI quota which requires only 12th board marks. Cutoff fluctuates under ALL INDIA, BUT apart from NRI, all other types should be applied by a student domiciled in Maharashtra.

Feel free to ask if you have any more queries. All the best!!