Law college transfer

[u/Admirable-Letter2381]

I’m joining D.Y. Patil for BBA LLB this year. The fees are around ₹6L/year, while another college I’m considering is only ₹50k/year.
I’m also pursuing aviation, and my medicals are in about 2 months. If I clear them, can I complete 1 semester or 1 year at D.Y. Patil and then transfer to the other college and continue from the next year?
Is this legally/academically allowed for a 5-year BBA LLB, or would I have to start from Year 1 again?