Hope you are doing well. As per your query the fee structure for Management quota in IEM or any other college varies every year and for every branch. For CSE branch the management quota fee it mainly ranges from 4-6 lakhs for 4 years.

IEM never discloses it's actual management quota fees online, but the students who are normally getting admitted are paying 5.84 Lakhs, so it will be around 9-10 lakhs for the management quota.

Not only for IEM, every reputed engineering college (private) has this unwritten rule of charging 4-6 lakhs more for the management quota. So, whichever college you want to go for CSE, the fees + 4-6 lakhs for 4 years.

See both the links for IEM and which college you will get and want to go :-

https://www.careers360.com/colleges/iem-college-of-management-kolkata

https://engineering.careers360.com/jee-main-college-predictor?utm_source=qna&utm_medium=jee_cp

Usually the fee structure can vary fro Rs 10 to 20 Lakhs per annum depending on college and state you are applying for.

In which college you're interested in?