Section 19(2)(v) in Bachelor of Engineering and Technology (Regulation of Admission and Payment of Fees) Rules, 2013
(v)after allotting the seats to the candidates mentioned in sub-clauses (i) to (iv) above, if seats remain vacant, the institute shall fill such seats from the candidates who have cleared the qualifying examination with minimum eligibility criteria prescribed in rule 5 but have not appeared in JEE-Main or any entrance examination. The merit list shall be prepared on the basis of theory marks obtained in Physics, Chemistry and Mathematics of qualifying examination.]