The difficulty level of the exam, the number of applicants, and the number of seats available in each programme are some of the variables that affect the cutoff for IIT Guwahati each year. The cutoff is the score that applicants must achieve in order to be considered for admission to a specific programme at IIT Guwahati.

Usually following the announcement of the JEE Advanced exam results is when the IIT Guwahati cutoff is made public. Each group of applicants (General, OBC, SC, ST, and PwD) and each program the institute offers have distinct cutoffs.

You can look at the cutoff from prior years to obtain a general sense of the IIT Guwahati cutoff. Here is the cutoff for JEE Advanced 2020 for IIT Guwahati:

Program	Cutoff (General)	Cutoff (OBC-NCL)	Cutoff (SC)	Cutoff (ST)
B.Tech	69	62	35	35
B.Tech-M.Tech Dual Degree	50	45	25	25
B.Tech-M.Sc Dual Degree	55	50	30	30
BS in Chemistry	49	44	25	25
BS in Economics	64	58	32	32
BS in Mathematics	55	50	28	28
BS in Physics	55	50	28	28