WBJEE

For Yadavpur University, you need minimum 125 marks out of 200 to get any respectable branch there.

Your probable rank will be around 34k-35k. However, check here for your probable colleges based on your marks:
https://www.google.co.in/url?sa=t&source=web&rct=j&url=https://www.shiksha.com/b-tech/resources/wbjee-college-predictor&ved=0ahUKEwis-YO6sp7UAhVGzlQKHaWWBVwQFghNMAQ&usg=AFQjCNHFdGxPSyaEpuQL-rFHAhIPZeM_Vg&sig2=SSbSEubm-mlBHQE2gme4jw.

May be, it will be valid depending upon counselor. Some of the counselors understand some couldn't. But, you must be prepared with the OBC certificate published by WBJEE board for not being disturbed at the time of counseling.

Hello Tathagata Das,
To get more information about TFW certificate of WBJEE. Check the information in the links given by WB government's official site. http://wbjeeb.nic.in/WebInfoExam/Handler/FileHandler.ashx?i=File&ii=104&iii=Y
http://wbjeeb.nic.in/WebInfoExam/Public/View.aspx?page=81

You have to go to the reporting center for further process of document verification and acceptance of seat. Otherwise, your seat will not remain locked.

For getting chemical engineering at Jadavpur University, you need to score more than 115 marks in WBJEE. All the best.

Yes, WBJEE is the only way to get admission in Jadavpur University.

For admission in mechanical engineering branch at Jadavpur University, you must target to secure a rank under 500 which equates to around 135 marks out of 200 in WBJEE.

As per the WBJEE eligibility criteria for B-Pharmacy, A candidate must have passed 10+2 with PCM or PCB with 45% of aggregate marks in above subjects(For General category) with English as a subject with min. 30% of marks.
Hence Math is not compulsory subject for B-Pharma in WBJEE. So you are eligible for B-Pharma course.