According to new education policy can a student of Bsc. (pass) home science able to give IIT-Jam or change the complete course for masters in upcoming years??
The National Education Policy isn't applied to the education system right now. So till now you can't do such but when ever the rules will be applied you can undoubtedly appear for it.
Till now the IIT JAM conducts the examination and can done there Masters from IIT's/NIT's/CFTI's having the UG from relevant background.
To know more about IIT JAM visit the link below:
https://university.careers360.com/exams/jam
To know more about the Home Science as a career, visit the link below:
https://www.careers360.com/courses/home-science-course
I hope this answer helps. All the very best for your future endeavors!