which is the best online coaching for ipmat

We cannot authenticate other websites but to help you wih IMPAT preparation, this answer is being written:

IPMAT has 2 sections Quantitative Aptitude and Verbal Ability. Now QA has 60 marks allotted and VA has 40 marks. Each correct answer gets you 4 marks and a wrong answer takes away 1 mark in the form of negative marking. Though there has been no official release of any syllabus, based on examinations over the years, it has been concluded that few topics are the most covered,
QA:
Number system, LCM & HCF, Percentage, Quadratic Equations, Binomial Theorem, Functions, Mensuration, Permutation and Combination, Probability, Profit, Loss and Discounts, Simple and Compound Interest, Progressions, Ratio and Proportion, Mixtures and Alligations, Logarithms, Time, Speed and Distance, Time and Work, Trigonometry, Geometery, Problems on Ages, Series and Unitary Method, Set Theory, Data Interpretation and Equations.

Because this section involves mathematics and takes most of your time, your focus should be on solving the problems efficiently in the beginning. Even if it takes time, practise upto perfection. Practise as many questions as you can in the conventional way. As and when you get a grip on the subject, you can go for short cuts. Memorise tables, square roots, cube roots, conversion from percent to fraction, etc. Solve sample papers on Mathematics. In the beginning, do not worry about the time it takes. As you practise, you will get the hang of the subject and it will be easier for you.

VA:
Vocabulary, Reading Comprehension, Grammar, Sentence Rearrangement, Sentence Correction, Sentence Completion, Correct Usage of words and phrases and verbal analogies.

Read articles from time to time. Follow newspapers, magazines, and watch the news channels and browse the internet to keep yourself updated. You will need a lot of reading to help you in the comprehension section. You will need speed to help you in this section and you can achieve that only by thorough practise and reading. Take time to understand the question because most answers are interlinked.