Hi Shreyasi, 

To prepare for MBA first of all you need to know that there are multiple exams for MBA like CAT, XAT, SNAP, MAT, NMAT etc. Once you are decided on which colleges and exam you want to target, then you can start preparing according to its syllabus. Generally, the syllabus comprises of quantitative aptitude, verbal section, logical and reasoning section. To prepare for these, you can practise the questions asked in different exams based on relevant topics, you can join online study forums like Handakafunda, hitbullseye etc, take coaching from T.I.M.E., IMS, Career Launcher and solve their study material, give mock test and analyse it. 

To know more about MBA, please check this link: https://bschool.careers360.com/

Hope this helps. All the best.