A prosecution witness and Reliance Infrastructure Ltd''s senior executive vice-president Ashish Tambawala on Tuesday told the CBI court that chairman of Reliance ADA Group Anil Ambani was not the director of Swan Telecom Pvt Ltd and Tiger Traders Pvt Ltd.

"Anil Ambani was not director of Swan Capital Pvt Ltd/Swan Telecom Pvt Ltd and Tiger Traders Pvt Ltd," he told Special CBI Judge O P Saini.

He said Reliance ADA Group is an umbrella of several companies belonging to it and he, during his tenure with the group, has been the authorised signatory of 150 to 200 firms. 

"I have been authorised signatory of 150 to 200 companies during my tenure with Reliance ADA Group. Reliance ADA Group is an umbrella of several companies belonging to the group. 

"Each company of the group has its own separate identity. Reliance ADA Group is generic name without any legal identity," he said. 

The CBI, in its charge sheet in the 2G case, had alleged that Tiger Traders Pvt Ltd and Swan Telecom Pvt Ltd were associate companies of Reliance ADA Group. 

He said that one can be made be authorised signatory of a company irrespective of being its shareholder or a director or an employee. 

He said that he had been an authorised signatory of many companies of which Anil Ambani has not been chairman during my tenure with the Reliance ADA Group. I have been authorised signatory of companies in which individuals were shareholders and not necessarily that shareholders were Reliance companies.

Tambawala said that it was customary for companies doing business with each other to keep transferring their funds from one company to another. His cross examination would continue tomorrow.