Dude, LET stands for Lateral Entry Test only for diploma holders who passed out from polytechnic colleges.
They are directly admitted to third semester classes... If you have diploma certificate, you can apply for LET. You can apply for payment seats at the time of option registration. for example, ME1F stands for Free seat of Mechanical Engineering at SOE. And ME1P stands for payment seat of Mechanical Engineering at SOE.. Note 1&2 , 1 for SOE 2 for bCUCEK & F for free seat P for payment seat.