If i score between 30-40 in Cracku's VARC and DILR sectionals, individually,What will be my score in Real CAT coz people are saying Cracku's mocks are way harder than the original paper?

Don't let all these things get into your head. Just focus on maximizing your score in all mocks and sectionals. Especially focus on taking the DASHCATs 16-20 as we feel they are quite similar to CAT 2017 and 2018. All the best