M. SUNDAR, J.

1. Instant intra-court appeals (two writ appeals) under Clause 15 of the Letters Patent are directed against a common order made by a learned Single Judge of this Court, being common order dated 11.11.2016 made in W.P.Nos.1875 of 2013 and 3652 of 2013. W.A.No.283 of 2017 is directed against W.P.No.1875 of 2013 and W.A.No.285 of 2017 is directed against W.P.No.3652 of 2013. We propose to dispose of both these intra-court appeals by this common order.

2. Facts that are absolutely essential for understanding and appreciating our order are set out infra under the caption 'Facts in a nutshell'.

3. Facts in a nutshell:

3(a) For the sake of brevity, clarity and convenience, following abbreviations and short forms are used in this order:

(i) 'Tata Communications Ltd.' (appellant in W.A.No.283 of 2017) is referred to as 'TATAs';

(ii) 'Bharti Airtel Ltd.', (appellant in W.A.No.285 of 2017) is referred to as 'Bharti';

(iii) 'Telecom Regulatory Authority of India' (Respondent No.1 in both writ appeals), is referred to as 'TRAI';

(iv) 'Bharat Sanchar Nigam Ltd.' (Respondent No.2 in both writ appeals) is referred to as 'BSNL';

(v) 'Association of Competitive Telecom Operators' is