CAT

To pursue MBA in India, you need to clear CAT exam. You need to score decent marks to get admission in a good Colleges. It does not depend on class 10th or 12th percentage.
You can check the below mentioned link:
https://www.way2college.com/articles/entrance-examination/checklist-for-the-cat-entrance-exam
All the best.

The CAT registration starts in September and exam will be held on November or December. A graduate with minimum 50% is the eligible to apply for CAT exam.

If fresher decent CAT/ XAT score >86 percentile.
if work exp/ excellent past academic record >84%

You can start preparing for quantitative part and try to finishing all the syllabus and make sure you know all the basics. Make sure that you have formulas on your tips.
You might not be able to improve on your verbal part because it generally requires time. What you can do is start reading newspapers for building a momentum to read at one stretch of one full hour. That concentration creates a gap in exam.
For PI, don't bother. You need to stay on your senses because it is generally unpredictable. I would suggest you to go for quantitative aptitude with full strength because that can be improved in a week.
All the best.

1. You should know the syllabus.
2. Practice a lot of questions topic-wise.
3. Clearing all your doubts.
4. Learning various tricks for fast reading and mental calculations.
5. Giving all the mock tests seriously.
6. Analyzing your mistakes and noting them down.
7. Studying religiously for 3-4 hours daily.
8. Taking breaks in between and
9. Attempting the exam with a relaxed frame of mind.
I hope it helps.

Yes, but you must prepare diligently for around 4-5 months. A lot of practice is essential, if you want to score well in exams like CAT. 3-4 hours of study is enough, if you study seriously.
Good luck.

To get admission in DY Patil College, the cutoff is 75 percentile and fee structure is around Rs.5 lakhs for 2 years.

Final year students can also appear for such exams but in order to get placed in colleges you need to complete your graduation and meet the required age criteria.

It will be the worst nightmare for you if you hate mathematics.