Hi Pradeesh! With a MAT score of 436, you have fewer options to choose from. If you feel that you can score much more, then I would recommend you take MAT and other exams again with better preparation and then go for MBA.
You can also consider 1-year management / executive programmes, offered by known Institutes like ISB, Great Lakes, IIMs and by other tier B-Schools as well. Preparation will help you seek admission in a good B-School rather than a run-of-the-mill college. All the best!