Absolutely. You will get car almost one month earlier. My TDD was 31st Oct, paid increased amount in first week of September and car delivered on 26 September.
Resale doesn't matter if you sale car after 5 years, i sold my 2010 city in 12.28 lacs, which I bought in September as well.
No change is expected and will never happened, probably changes will come in turbo only when it will be relaunched.
So pay the difference and enjoy car in October.