I scored 110 marks in JEE main 2018 and I belong to Delhi and OBC. Can I get CSE in IIIT D ??

Can't predict through your marks but you can check opening and closing rank for Jee main 2017 for your desired institute from the link Given below
https://engineering.careers360.com/articles/jee-main-cutoff

Every additional seat in DTU, NSIT and IIITD till EE is filled up in DTU will consume 25 JEE Main rank in Delhi General category. Hence, you can expect fall of 3000 rank due to increase of seats in DTU and IIIT as compared to last year. We are all waiting for NSIT to announce increase of seats and in which branches. Then, a clear picture could emerge.


Note: Besides 250 Computer and IT seats in DTU, IGDT is increasing 60 seats in Computers. Around 80 more seats in IIITD in CSAM and ECE have been announced. NSIT is unlikely to announce any increase this year. May be 30 odd seats increase in Mech at the most..

Thank you:)