A month after its launch and two weeks after the finance minister reviewed its functioning, technical glitches continue to mar the functioning of the new income tax portal as certain key utilities like e-proceedings and digital signature certificate are not yet functional, say chartered accountants. Also, some overseas firms have been facing problems in logging in to the portal, they said. The much-touted new income tax portal 'www.incometax.gov.in' had a bumpy start from the day of its launch on June 7 as it continued to face tech glitches, which prompted Finance Minister Nirmala Sitharaman to call a meeting on June 22 with officials of Infosys which has developed the new website.