Greetings aspirant,

in case of choice filling and locking for all the exams, after you`ve made your necessary payments, fillef up the form, submitted necessary documents(if any); the choices of your preferred colleges including the preferred streams will get automatically locked after the pre-specified time limit is crossed. Please stay updated to the counselling schedule, so that you do not miss any good opportunity and keep your documents ready and up to date.

Hope it helps.

Good luck for your future endeavours!