Hi desiaggie, vicksikand and enkie,
Thank you for your replies.
I had this feeling, that starting to prepare for GMAT without taking care of some basic English concepts would definitely lead to a disaster. But yes, as I am unaware of where I stand at this point in time, taking up a diagnostic test would really help in defining my strategy towards my preparations.
@desiaggie: I am concerned about the same, so before really starting to put my hands on preparation books, I wish to hone my basic English knowledge. And as a kid/student, math has always been a favorite, I don't have a fear for it.
@vicksikand: As far as spoken english is concerned, joining some local discussion groups, where people from various backgrounds gather together, take up some topic and discuss about it might help. I hope such exercises would be helpful to polish my spoken english. For written English, I can start practicing it over a blog, but then, there is no way I could get a good feedback over my sentence constructions and grammar. Maybe we can start (or does it already exists?) a small section in the GMAT club where members will write few lines on some current affairs, and others can then point out mistakes in their writings.
@enkie: That was a really nice information your posted here. Thank you for mentioning about the Kaplan Verbal Foundation book. I will get that book soon. I have started off with "Wren and Martin, High School Grammar" which I used as a reference guide while in school. I have given some grammar tests online, which had three levels; basic, intermediate and advanced. I could very easily tackle the basic and intermediate tests, but had a score of 5/7 in the advanced test section. As they did not gave any explanation on mistakes, I had doubts about their accuracy. But I guess, revising the grammar and completing some practice tests from the books would be helpful to accurately determine my progress.