Calcutta University

Yes, but WBJEE is basically for the colleges under MA KAUT.

Hi, Placements (as provided by college)
Companies / Recruiters who visited the campus
ACC Limited Dabur HCL Hutch IBM satyam Wipro
Alumni Employment Stats Data
Average annual salary details of 253 alumni of this course (by work experience)
0-2 Years: 3.45 Lacs (INR)
2-5 Years: 4.5 Lacs (INR)
5+ Years: 5.58 Lacs (INR)
https://www.shiksha.com/mba/course/mba-in-finance-university-of-calcutta-college-street-Kolkata-124087.

Yes, you can definitely apply for the Masters in Diploma in Interior Architecture and Design course in DreamZone School of Creative Studies. The medium of study is English though. You can apply directly to the college for admission.

I have 2 year B.Com pass degree from North Bengal University.

There is no Ph.D in immunology at the University of Calcutta. However, there are M.Phil courses.
Eligibility for PhD in immunology at other institutes are as follows:
As a minimum criterion of eligibility, aspiring candidates need to meet the following minimum eligibility criteria:
Postgraduate degree in a relevant discipline, completed from a recognized university.
A minimum aggregate score of 55% (50% for SC/ST candidates) at the level of post-graduation.
At least 5 years of teaching/ industry/ administrative/ professional experience at a senior level.

Online Form Submission: 01st June 2017 to 15th June 2017
Application Fees Payment (through SBI Collect): 01st June to 16th June 2017
Online Admit Card Download: 21st June to 24th June 2017
Entrance Test: 25th June 2017 (Sunday)
Entrance Test Overall Merit List & Category wise seat Capacity: 30th June 2017
These were the dates which are over for the current year.
For 2018 you need to wait till Jan/Feb for the dates to be finalized.