That's a really big list of schools. You won't be able to do a good job on that many schools in a single round, no matter when you apply. That's why we asked which ones you're targeting. When you set up that list initially were you planning on doing all of them in Rd 1? You say it will take a month to write the app - well, that's 11 schools. It actually takes almost a month to write EACH app - you can stack them and work concurrently but this is not a trivial amount of work. If you're really planning on applying to that many, you MUST get some of them in at the earliest rounds.
For the lower-ranked schools like Boston and Krannert, no, not a big advantage to Rd 1, but for many of the others there is - especially given that we presume you're coming from the classically oversubscribed pool of Indian male.
We also don't understand the strategy. You're not applying in Rd 1 because you need to take the test at the end of September and there wouldn't be enough time for essays... OK, we get that, though we feel that it would be a major missed opportunity. But then in the next breath you say that you want to do Rd 2 since you could take the GMAT in November. Why wouldn't you keep your current GMAT test date? Then you could start immediately working on essays and have the greatest chance of all.
The GMAT is important, and yes it's a lot of work, and yes it's best if you focus exclusively on GMAT prep and don't try to worry about essays simultaneously. We're behind you on all of that.
But the essays typically take longer than people expect, and if you push everything out to Rd 2, then all you're doing is prolonging the agony. And a rushed essay is never a good essay.
Just make sure you're thinking all of this through. Every year right around now, we see people put everything off for what seems like a good reason but it often ends up biting them, big time.

EssaySnark