MAT

MAT and ATMA are among the easier MBA entrance examinations that are conducted in the country. It is advisable to prepare for CAT XAT IIFT SNAP as preparing for them will already make you exam ready for exams like MAT and ATMA. However you can use these books for your reference-
NCERT (Class 9 and 10)- Believe it or not, the best books are often the ones that are the simplest. Try to finish these before going for other books. Follow Wren and Martin for basic English and grammar. Sarvesh Verma (Quantum CAT for Quants) and/or Nishit K. Sinha (Logical Reasoning, Quants and Verbal Ability)- A good choice to begin with after NCERT books. Solve the lesser difficulty questions first before going on to the more difficult questions. Also both books have awesome examples to learn/solve from. Arun Sharma (book series)- Not a must have according to me but one can solve the book for the sake of solving a wide range of questions. Start with LOD-I before moving onto LOD-II. LOD-III has ridiculously difficult questions. LOD-III a must for LRDI. Youtube channels- There are a number of good YouTube channels like Takshzila Shikshak, Dinesh Miglani, Maths by Amiya, ElitesGrid, LearnQuest, iQuanta that have great content worth looking into. Facebook Groups- Social media has disrupted the way we study and one can find a host of questions on Facebook Groups like LearnQuest, ElitesGrid, iQuanta, Learningroots, Maths by Amiya to solve from. One can even post doubts in the group and it will be answered within an hour or so. If one follows the above steps, I am more than confident that he/she can score well in most (if not all) of the MBA entrance examinations held in our country.