MBA Entrance Exam

More than 70 percentile is must. The list of top B-schools is given below:
https://www.shiksha.com/mba/ranking/top-mba-colleges-in-india/2-2-0-0-0.

Indian Institute of Managements expects 95 to 99.99 percentile in the CAT exam. With 80 percentile, you may not be able to get admission in Iims.

1. Mission MBA guide by BS Sijwali and Tarun Goal by Arihant.
2. MAT entrance exam with practice CD by GKP The Pearson.
3. MAT super course with CD by Pearson Study package for MAT by Arun Sharma.
4. 10 challengers MAT 10 mock tests for MAT by Dharmendra Mittal.
5. MAT score accelerator by Odisha publications.
6. MAT solved papers by Odisha experts.
7. 10 mock test papers for MAT by Career Launchers.
8. Barrons guide for MAT by Eugene D Jaffe.
9. MAT entrance guide by Deepak Aggarwal.

The cutoff for MS is 91 to 93 percentile. For PGDM, it is above 60 percentile. You can check the below mentioned link:
https://www.shiksha.com/mba/course/masters-of-management-studies-st-francis-institute-of-management-research-sfimar-borivali-west-Mumbai-110812.

He chances are moderate. You can check the below mentioned link:
https://www.shiksha.com/mba/course/master-of-management-studies-xavier-institute-of-management-and-research-ximr-fort-Mumbai-113330.

You need to apply for PGDM, dates must be over by this time, you should contact the colleges for further information. https://www.shiksha.com/mba/course/masters-of-management-studies-st-francis-institute-of-management-research-sfimar-borivali-west-mumbai-110812.

MH-CET, chance is good enough. For MAT you need minimum 90 percentile. https://www.shiksha.com/mba/course/master-of-business-administration-mit-school-of-management-mitsom-kothrud-pune-2340.

All your marksheets till date, application form, Degree certificate, work experience detail, resignation letter if any, any other certification you have and photographs.

You need to know technical knowledge basically and overview of the industry rules and regulations in India and across the world, following article may help you:
http://study.com/articles/MBA_in_Agribusiness_Degree_Program_Overview.html.

For MS course, you can choose Indira-Pune, Durgadevi Saraf, Alkesh Dinesh Modi, Vidyalankar and Don Bosco. For MAT scores compare your score with cutoffs of different colleges mentioned below and choose accordingly:
https://www.shiksha.com/mba/ranking/top-mba-colleges-in-india-accepting-mat/2-2-0-0-306.