INFORMATION TECHNOLOGY DEVELOPMENT AGENCY known as ITDA is a Uttarakhand Government undertaking agency under the administrative control of the Department of Information Technology, Government of Uttarakhand.

"ITDA- CALC" is a not-for-profit society registered in Dehradun, India. ITDA initiated computer literacy programme for students through ITDA-CALC in the year 1991 with the objective to provide computer education at affordable cost to all the sections of the society in Uttarakhand and other states. ITDA-CALC provides training in computer education at Basic, Intermediate and advance level career oriented courses at the remotest area with the best possible training environment with the course structure well defined in accordance with the present trend of IT industry.
ITDA-CALC wishes to join hands with departments meant for upliftment of economically weaker and socially left out sections of the society in Uttarakhand.ITDA-CALC has set up wide network of 49 training centers in entire Uttarakhand with the facilities like training equipments, teaching faculties and the courseware (study material).