Trai has written a letter to the MSOs (a copy of which is with Indiantelevision.com) calling for a meeting on 5 April in New Delhi, for "assessing (MSOs‘) state of preparedness in the case of extension of Conditional Access System to other parts of Mumbai, Delhi and Kolkata."

* Whether Cas may be extended to the remaining areas of the three metros at one go or in phases; and

* What should be the time frame for the various activities that need to be undertaken.

It has added: "How long should the "trial period" (a period of transition) be prior to complete roll out of Cas?"