Hello Fazal

Well there are various colleges which accepts kmat score. You can apply for Management colleges in Kerala too.

Some the well known colleges in which you should apply are suggested below.

Indus

AIMS

Acharya institute of management

GITAM Bangalore

Justice KS Hegde institute of management studies, Udupi.

Don't be worry about your score you will definitely get admission in good H school, you just need to build confidence in you. And yes prepare well for GD and PI and hone your soft skills as well.

Good luck for your career ahead.