Hi Biky,
I can provide you 2016, 2017 and 2018 closing ranks of IIT Kharagpur for SC category candidates, so you can get a clear idea.
In 2016, after the last round-
Closing Rank- 1,845
In 2017, after the last round-
Closing Rank- 1,852
In 2018, after the last round-
Closing Rank- 1,886
Therefore, you need an SC rank below 1,900 to be able to get the lowest branch of IIT Kharagpur.
I would suggest you go for IIT Gandhinagar.
Hope this helps you.
All the best!!!
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