Hi Ashu,

GATE 2019 Cut-off for IIT Indore has not been released so far. The cut-off will released will be calculated based on a number of factors such as number of participants, difficulty of examination, seats available and so on. Below are the previous year cut-offs for OBC category. With a score of 680 I think you have a fair chance of clearing the cut-off for IIT Indore.

You can check the cut-off in the below link when it is released by the institute:

https://engineering.careers360.com/articles/gate-cutoff-for-iit-indore

GATE 2018 Cut-off of IIT Indore for OBC

Communication and Signal Processing 607

VLSI Design and Nano electronics: 641

GATE 2017 Cut-off of IIT Indore for OBC

Communication and Signal Processing: 470

VLSI Design and Nano electronics: 540

Material Sciences and Engineering: 405

GATE 2016 Cut-off of IIT Indore for OBC

Communication & Signal Processing: 628

GATE 2015 Cut-off of IIT Indore for OBC

Communication & Signal Processing: 689

Best Wishes!