No there is no form ,if you want admission in iiit delhi then you should satisfy JAC ELIGIBILITY-

JAC Delhi Eligibility Criteria 2020 - Joint Admission Counselling Committee, Delhi will prescribe the eligibility criteria of JAC Delhi 2020 on the official website. Candidates seeking admission should always check the JAC Delhi eligibility criteria 2020 as failing to meet any criteria will lead to rejection of candidature. It should be noted that no entrance exam will be conducted for JAC Delhi 2020. The admission will be conducted on the basis of JEE Main Paper 1 scores for B.Tech courses and Paper 2 for B.Arch courses.

For eligibility in details--

Get on the link--

https://engineering.careers360.com/articles/jac-delhi-eligibility-criteria