hi,

sorry to say b,com students are not allow.

the basic eligibility criteria for nit nimcet exam is Candidates must have studied either of B.Sc.  or B.Sc. (Hons)  or BCA  or  BIT or  B.E/ B.Tech  courses of minimum three years full-time from a recognized University with Mathematics or Statistics as one of the subjects. since you have studies b.com (//b.com) you are not eligible.