Best course to do before mba.but the course should be without maths

If you mean a course to do after you get selected in a b-school then there are numerous online courses you can do which can help you to improve yourself.

But most of the courses will involve number, there are very few courses which might not at all involve Maths. You can try few courses like Introduction to finance, Introduction to Marketing, Organisational Behaviour, Economics, Digital Marketing, Operational Research etc. which will give you a pre requisite knowledge about what you are going to study in next few years.

Along with that you can also do some courses on your personality development, English speaking course. These courses will be extremely important because during next 2 years you will need to give lots and lots of presentations along with report so you need to have a very good personality while giving presentations along with fluency in speaking English. You cam also further improve your writing skills as you will need to write a lot of reports in next years.

You can also do a proper excel course which you will need to operate irrespective of any stream you go. The whole MBA course revolves around Microsoft Word, PowerPoint and Excel. You need to excel in all the 3 in order to complete your MBA at high level and end up in a good company.

Your this question is pretty early as MBA exams are coming close right now and if you are going to appear in exams this year so your main focus should be to get a very high percentile and convert in best b-school.

All the best!!