Tax authorities are investigating Goods and Service Tax Network (GSTN) for possible service tax evasion. GSTN was floated to create the technology platform for combined indirect tax levy . CEO Prakash Kumar of GSTN, where banks and financial institutions are majority shareholders, was initially summoned by service tax superintendent with the books of accounts, details of funds received from the Centre as well as a copy of the agreement with Infosys, which is designing the system along with payments made to the IT major. An official, however, said that the “summon does not exist now“, indicating that the letter which had been issued last Saturday was withdrawn. “I have not received anything,“ GSTN CEO Prakash Kumar told TOI adding that the GST network operator had paid all taxes on time including service tax. Tax experts said GSTN was liable to pay service tax under the rules. “Though service provided by government is in negative list but service provided by a company to governm