The tribunal issued notice to the Competition Commission of India (CCI) today after hearing an appeal filed by Adani Gas challenging the order.
In July, CCI had slapped a fine of Rs 25.67 crore on Adani Gas for violating competition norms by abusing its dominant market position.
Adani Gas is a subsidiary of Adani Enterprises, which is part of diversified Adani Group.
The Commission's ruling had come on a case related to supply and distribution of natural gas by Adani Gas Ltd in Faridabad.
Apart from directing Adani Gas to cease and desist from unfair practices, the CCI has asked the company to modify the Gas Sales Agreements (GSAs).
The Commission had also found that Adani Gas to be in "dominant position in the relevant market of supply and distribution of natural gas to industrial consumers in the district Faridabad, Haryana".
The watchdog had held that Adani Gas violated competition norms by imposing "unfair conditions upon the buyers under Gas GSA".