i didnt write any cat or k.mat exams. pls tell me am i eligible.

you can take direct admission in some private college ad deemed university like LPU, SMU, MMU

There are thousands of colleges who offer MBA without any entrance exam score as their seats remain vacant after admission through entrance exam score. But remember, degree from such colleges do not provide the kind of job or package which a proper B-school with CAT/MAT score can provide.