i have been regularly score 150-160 in nmat, score 45 in english weak in vocab barely score 2-3 answers correct out of 10 and grammar i leave rcs in nmat because it take too much time and unable to solve implicit questions in logical reasoning part, i have no idea about these questions..in quant sometimes i score 90+ , 70-75 and sometimes 50 based on difficulty level.

Hi Swaroop, From your post it seems you are facing problem in the verbal section which you have figured out after giving many mocks. I appreciate your strategy as you already have figured out where your weaknesses are, now start giving extra efforts to make them better and be assure of it that next time when you hit a mock, you won't repeat the same mistakes. Here are some links where you can improve your verbal section
Reading Comprehension: https://cracku.in/cat/verbal-and-lr/reading-comprehension/cheatsheet
Grammar and Sentence correction: https://cracku.in/cat/verbal-and-lr/grammar-sentence-correction/cheatsheet
If anything else we can do, please let us know.