B.Sc in Lucknow

They conduct an entrance test for every course, nothing is based on the cut off of class 12th.

Hi Rishab Tiwari,
You can contact the college/ university for the details regarding college change in 2nd semester as they are the right authority to answer.

No colleges allow direct admission in third year of B.Sc. You are advised to clear your 2nd semester backlog to join 5th semester of B.Sc in your current college.

Hello Mohammed,
It's very good to know your dream. It's actually very simple. Least fees are only with govt colleges. Hence you need to take admission in any college in UP, preferably in your hometown, if it is offering the stream of your choice. Normally state government conducts online admission process immediately after results of 12th are announced. You will get admission based on your marks.