Hi Vaibhav. The average official GMAT score is a 540, so that means the average starting score is probably around a 500. But it doesn't really matter as you can improve drastically. Scoring a 700 is very possible with the time you have to prep, as long as you prep wisely.
You have a lot of work to do in Verbal, as you scored in the 6th percentile there on your diagnostic. I would definitely recommend using the
MGMAT Verbal foundations book at the beginning of your prep. It is a great guide to start with for low Verbal scorers. And in general, plan to prep more on verbal as it often takes longer to improve on and is more challenging to gain points on. A Q41 is the 64th percentile - not at all bad to start with.
As far as materials to use, a plan to follow, and guidance on getting the most out of each prep hour, I recommend
GMAT Clarity.