Hi Kirti,
I think you have done really well on Quant so your focus area should now be only verbal. To improve verbal you may follow the following strategy. If you have already practiced some of the sources mentioned below you can get other practice material. If you have any other questions please let me know.
Sentence Correction (SC)
Preparation: Manhattan® SC 2007 edition, is an amazing book, one may call it the SC Bible as it prepares you exhaustively for SC.
Practice: Read the GMAT® Official Guide (OG-12) for SC & understand the
concepts through Answer Key. Re-do all questions, if possible. Please pay
significant attention to idioms as questions on them are tricky but relatively easy.
Modifiers also require significant attention.
Aim: Achieve accuracy greater than 85% in all practice sets.
Important Tip: Don't spend equal time on all types of SC questions. Practice all of
them initially & identify your weak areas. Focus your efforts more on these for
more robust & efficient preparation.
Reading Comprehension (RC)
Preparation: Read editorials from NY Times® or Washington Post® online or
from other newspapers on daily basis. It helps in building your reading speed. It should
be a daily exercise.
Practice: Practice from all possible sources as a lot of raw practice is required to
ace RCs. Practice at least 100 RCs before you start giving mocks.
Aim: Read easier passage in 2-3 minutes & understand the basic gist of it. If the
passage is really tough you can take up to 4 minutes. Do not rest until you
achieve accuracy > 85 % in all practice sets.
Important Tip: We also advice against jumping to questions first & then looking
for answers in the paragraph. Reading essay first makes answering "main point"
& "summary of essay" questions seem like a cakewalk.
Critical Reasoning (CR)
Preparation: Critical reasoning Bible by PowerScore®, helps with all CR basics.
Practice: All GMAT® Official Guide (OG-12) questions alongside reading the Bible.
Aim: Achieve accuracy greater than 85% in all practice sets.