It is good but definitely not enough. The right strategy would be to complete NCERTs amd PUC books and then move on to RD Sharma and after completing it you should solve questions from TMH publications book for mathematics and apart from that solve previous year question papers of Comedk.
These are some books that can also help :
Best Books for KCET 2020: Mathematics
- NCERT books of Class 11 and 12 for Mathematics
- CET by Bosco
- MCQ by Asit Das Gupta Mathematics by Dinesh
- Mathematics for 1st Year PUC BY Dr. PG Umarani
I hope this helps.