Student Federation of India's Aishe Ghosh is the new JNUSU president who got a total of 2,313 votes.
The students will have to follow the undertaking which doesn't allow them to wear mini-skirts and crop tops to college.
On Friday, a lady security guard halted various female students at the college gate whose kurti length was above their knees.
This year, the voting turnout was recorded at 39.9% as opposed to 44.46% the previous year.
Students alleged that the college administration banned burqas and the hijab after a clash between two student groups took a violent turn.
The visa will allow eligible students to look for work, in any career or position of their choice, for two years after completing their studies.
On Wednesday, the Delhi High Court sought response of the University on a plea by three SFI students alleging that they were illegally restrained from filing their nominations for elections.