Karnataka 2nd PUC

Hope you are doing well, now coming back to the question, Yes you can transfer from one college to another college in the second year of B.Com course but you have to continue your studies under the same University. If you want to take admission in the another university then it is not possible.

If wants to do Engineering/ Medical and Design related courses, then CBSE board is the best. Because the syllabus of entrance exams are oriented towards the CBSE.

Yes, you have the chance of second counseling. The seat allotted during 1st counselling remains unless you withdraw the fees from the college.

University of Agricultural Sciences
College of Agriculture, Mysore. College of Agriculture and Regional Research Station, Dharwad.

It is a UGC recognised university as per Sec. 2f of the UGC ACT 1956. Singhania University is situated at Pacheri Bari, District so it is definitely valid in India as a self education.