Hey Gurpeet,
Glad to hear you're interested in our Sentence Correction Guide!
1. We don't have an official soft copy of our Strategy Guides that you can download yet. If you have an e-reader, you might be interested in purchasing the e-book version of the SC Strategy Guide. You'll still get access to the 6 CATs.
2. As long as you purchase a new copy, each of the Strategy Guides come with access to all 6 CATs. If you buy a used copy, you risk that the previous owner already used the access code for the online resources. You can see a list of Manhattan GMAT booksellers in India here:
http://www.manhattangmat.com/intl-book-stores.cfm#indiaPlease let me know if you have any other questions.
Best,
Matt Mapplebeck
Student Services Associate
Manhattan GMAT