UIDAI CEO A B Pandey has been appointed as interim chairman of Goods and Services Tax Network (GSTN), the firm providing IT backbone and portal for registration and tax returns under the GST regime. Pandey was given additional charge days after GSTNs first chairman Navin Kumar completed his term on August 29. Kumar, former IAS offer from Bihar cadre, was the first chairman of GSTN. He was appointed as Chairman, GSTN in May 17, 2013 for three years, on completion of which his term was extended, with the condition that he would remain in office till he turns 65. The UIDAI issues Unique Identification numbers (UID), named as Aadhaar, to all residents of India. The GSTN is the information technology (IT) backbone and portal for real-time taxpayer registration, migration and tax return filing under the GST.