Can B.Planning students choose B.Tech and BE in second attempt?

It depends on the college, some colleges allow you to sit for multiple Courses exams but you need to confirm with the college as what rules does the college follow so you can make your decision on that basis.

Depending on the college, some colleges allow you to sit for multiple Courses exams but you need to cross confirm with the college as what rules does the college follow so you can make your decision on that basis.