Though established in 1948, the logo for ITI was designed in 1971, with the first ever Indian Telephone Industries plant established in Naini (Uttar Pradesh) as a manufacturer of transmission equipments like telephonic instruments, related fibres etc. The use of Devanagri letterform in a graphic treatment that creates the form of a telephone along with equally bold letters ITI with deliberate angular endings signify the cutting edge technology in making fibre and telephonic products as part of transmission equipments.