Kashan khan if we look for the last year cut-off then forget about getting admission in any IIT with 105 marks you will not even able to cross JEE Advanced examination cut-off. But with the increase in the toughness of paper, it is expected that the cut-off for all the categories including OBC category will fall down to a certain extent so you can expect that you might clear the cut-off and can become eligible to sit in the IIT admission counselling but still your rank will be around 3500-4000 in your OBC category which might not be enough to get you a seat in any of the IIT. Still, you can wait till the final result if you get a better rank then this then you might have a slim chance of getting into some of the lower ranked IIT.

Feel free to ask if you have any more queries. All the best!!