Hello Sonu, please check out the following link for detailed info on WBJEE cutoff:

https://engineering.careers360.com/articles/wbjee-cutoff

With 27000 rank might get into the following as per previous year's statistics

• Jadavpur- chemical, civil, construction, electrical (SC/ST), ECE (sc/st), food technology, instrumentation, metalurgy, power, print, production
• Heritage institute of technology - same as above, biotech
• Narula institute of technology - same as above

• Techno India University (CS)
• MSIT - Meghnad Saha Institute of Technology (IT)
• Netaji Subhash Engineering College - NSEC (Mechanical)
• Bengal Institute of Technology (Bio Technology)
• AEC - Asansol Engineering College (CS)
• B.P. Poddar Institute of Management and Technology (IT)
• HIT - Haldia Institute of Technology (Food Technology)
• AIEMD - Aryabhatta Institute of Engineering and Management (CS)
• MCKV Institute of Engineering - MCKVIE (CS)

• All the Best.