The cutoffs for IIT Roorkee for core branches varies every year.The last year cut offs for the core branches like Mechanical,Civil,Electrical,Chemical.
For details you can visit the link given below:-
Hope this will help,please feel free to ask if you have any further queries.
IITR is one of the oldest IITs and most sought after by the aspirants. You haven't mentioned your category or the home state so its ambiguous to tell the qualifying rank. The marks and rank varies every year so you need to keep revising you basics and prepare your best.
Check the following link for the cutoff trends: https://engineering.careers360.com/articles/jee-advanced-cutoff-for-iit-roorkee
All the best.
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The cutoff marks depend upon various factors like-
(1) Caste reservation
(3) Home state reservation
I will mention the closing ranks of the core branches in IIT,Roorkee for general caste boys.
(2) ECE- 1200
(4) EEE- 1900
For more info regarding cutoff ranks go through this link-