Dear Aspirant,

KEAM preparation should be enough for SRMJEE as both are entrance examinations and have almost similar exam syllabus and pattern. However, some of the portions may vary hence it is advisable that you look into the syllabus and prepare accordingly.

With respect to using NCERT textbook for the preparation of Mathematics is recommended however, it is advisable that you utilize other textbooks as well, which are of competitive examinations level. NCERT textbooks are very useful for the understanding of the topics and getting the basic idea, however for an entrance examination it is best if you utilize other textbooks as well, which have advance level of questions.

You may also solve previous years question papers of SRMJEE to get a better idea of how the questions are asked and to get an idea of the trend of the questions.