She is a student of Hansraj College.
According to varsity authorities, Wadhera defeated independent Anurag Sharma by over 2,500 votes. Kaur defeated Ravi Kaushik of Hansraj College by over 4,000 votes.
Tyagi defeated the Students Federation of India's (SFI) Natasha Nerwal by over 3,000 votes.
Elections to DUSU took place Friday. The vote count began Saturday morning in the Civil Lines area in north Delhi. Twenty-nine students were in the fray for the four posts.
Soon after his victory, president-elect Chaudhary said: 'I was confident of winning. This is a win for our team. Today's win has strengthened my trust in the whole system.'
ABVP supporters said Chaudhary got their backing after their candidate was disqualified from contesting.
Six candidates from ABVP and NSUI were barred from contesting the elections for violating rules on election expenditure. They were found spending more money than the fixed amount of Rs.5,000 per person, using cars and organising rallies for their campaign.
All this was deemed to be in violation of the recommendations of a panel headed by former chief election commissioner J.M. Lyngdoh.
'My friends and I appreciate the strong resolve of the university for a fair election,' said Aditya Raj Kaul, a graduation student in the north campus.