What is Go green with digital as per New Trademark Rules, 2017?

NEW TRADE MARK RULES, 2017 

Go green with digital:

In order to promote a rather paperless system in line with the Digital India campaign and disincentive dependency on paper, any physical filing of an application or document with the Trade Marks Office shall entail an additional fee of approximately 10% and in some cases, physical filings are not even permitted. Thus, the electronic mode of filing and correspondence will be the call of this era.