If you have completed your graduation then you can register yourself for CA  through the direct entry scheme and directly appear for the Intermediate exam. For preparation of CA intermediate you can take face to face classes in your city or you can take online classes either of the best faculty of each subject or on unacademy as well. All the very best !

ICAI introduced the Direct Entry Scheme with effect from 1 ^st August 2012 and according to this scheme, students who have completed their Graduation with specified percentage of marks are exempted from appearing for CA Foundation Exams

The minimum grade for commerce graduates/postgraduates is 55%, whereas the minimal mark for other graduates/postgraduates is 60 %. .

Therefore, as you have completed your b.com so you can get into CA through the direct entry scheme.