Hello aspirant,
With a WBJEE rank of 19850, you have a good chance of securing a seat in a decent engineering college for Computer Science Engineering (CSE) in West Bengal.

Based on previous year trends, you can explore the following colleges:

• Government Colleges: While top-tier government colleges like Jadavpur University and IIT Kharagpur might be out of reach, you can consider other government engineering colleges in West Bengal.
• Private Engineering Colleges: West Bengal has several good private engineering colleges with strong CSE programs. Research colleges like Haldia Institute of Technology, Kalyani Government Engineering College, and others.
• University-Based Colleges: Some universities in West Bengal offer engineering programs. Explore options like Bengal Engineering and Science University, Shibpur.

These are some of the colleges that you can go for :
1. Jalpaiguri Government Engineering College,
2. Burdwan Institute of Engineering and Technology
3. Haldia Institute of Technology
4. Kalyani Government Engineering College (Though a government college, it often has a competitive environment)
5. RCC Institute of Technology
6. Adamas University
7. Techno India University
8. Bengal Engineering and Science University, Shibpur

I hope this information helps.