Actually, I send scanned copy of signature page just in case.... I think that was not required as they already have signature page with them, on which we have agreed that they can order our information from "anywhere" at "any time"...
I sent through e-mail because of the following reasons: -
1) It was written that I have to reply to the e-mail in 15 days.
2) They did not mention any postal address in the e-mail.
3) He gave me only 15 days... courier takes around one week, which means no cushion time... So, it only made sense to send through e-mail.
Anyways, I have asked him/her to let me know if I have to submit it some other way...