Hello Dear,

You will be needing No Objection Certificate(NOC) from both institutes, a vacancy certificate from the institute in which transfer is desired( as you want to transfer to SGSITS, it is difficult because there is no vacant seat left in 2nd year . While changing in 2nd year, you can opt for a branch change but for a change in 3rd year, you don’t have a option of branch change.

Good Luck