The government has asked Infosys chairman Nandan Nilekani to explain why the IT major has failed to fix glitches in the GST Network.According to TNN, Nilekani will have to make a presentation when the GST Council meets next.The government recently staggerred the deadline for filing returns as Infosys executives were unable to address the concerns. These include a slow platform, log-in errors, as well as delays in getting one-time passwords (OTPs).Meanwhile, in a strongly worded letter to Infosys on March 5, the ministry said some of the problems highlighted as early as 2018 are still unresolved and failures month after month lead to genuine taxpayers "getting frustrated".According to the report, the failure happened despite summons to senior company executives by revenue secretary A B P Pandey, prompting the finance ministry to take up the issue with Nilekani over a month ago. Finance minister Nirmala Sitharaman has also held discussions on the issue, discussing the GST Network, as well as Infosys’s role.The IT company has developed the software for GST Network ( GSTN ) -- which provides the technology backbone for Goods and Services Tax (GST).The GST Council, headed by Sitharaman, is scheduled to meet on Saturday.Officials admitted that the IT platform has not stabilised even two and a half years after GST was rolled out. Even earlier, a ministerial panel had ticked off Infosys as it believed that the IT major had not deputed senior executives across states to tackle glitches that had emerged, prompting the Bengaluru-based company to deploy better quality manpower.Repeated problems with the platform, which taxpayers claimed often delay filings beyond the deadline and lead to penalties, have also led to the Supreme Court recently asking the government to resolve technical difficulties.