Hi, first of all i'm sorry to say but at this rank i.e. 18302 you will not get admission in IIIT, Naya Raipur. To get into IIIT, Naya Raipur with SC category one should have rank in between the range of; I'm mentioning the SC category rank in for different branches the IIIT, Naya Raipur provides, are as follows;

• B.Tech Data Science and Artificial Intelligence              -          3338-4073
• B.Tech Computer Science and Engineering                   -          3914-4290
• B.Tech Electronics & Communication Engineering       -          5468-5969

I hope you have got your answer.

Good Luck.