Hello

It depends for each IIT and NIT.

IIT Bombay is likely to resume physical classes for undergraduate second-year and third-year students in December. Director of IIT-Bombay, S Sudarshan had said the institute had written to all second and third-year students and said the students too are quite happy to return to campus.

IIT Kharagpur reopened its campus partially for students who had connectivity problems during online classes as well as for all vaccinated students pursuing two-year MTech and MSc programmes.

IIT Patna too allowed students with at least one dose of Covid-19 vaccine to return to campus for completing their research work.

IIT Delhi Director V Rampgopal Rao has said that in-person classes will resume for first-year BTech students in November and the remaining classes will reopen by January next year.

Most institutes will give preference for second and third years or students doing Mtech and phd to come first as they were at home for most of the past two years.

Hope this helps !