hi,

I assume you are asking about sastra btech admission. sastra university hs two type of dmission process. in stream 1 process admission is based on jee main score and 12th score basis, 75% weightage is given to 12th score where 25% weightage is given to jee main score. by stream 1 process 70% seats are fills of b.tech.

in stream 2 process, admission is based on 12th score. 30% seats are fills by stream 2 process.

now the allotment of seats depends on number of students enrolled for the counselling, demands of students for any particular stream etc, so if maximum students takes admission after first counselling then the number of vacant seat would decrease in second counselling.

I suggest you to keep calm and participate in counselling process.