Distance is not the basis for the correspondence education. It is important from which institution or college you receive it and the quality of the education you get. Moreover you have to find out carefully whether the study and service centers of that particular institution exist in your place. Here are some of the institutions where BCA studies are offered:
Indira Gandhi National Open University, New Delhi.
Alagappa University, Karaikudi.
Bharathidasan University, Trichy,
Madurai Kamaraj University, Madurai.
Manonmaniam Sundaranar University, Tirunelveli.
Pondicherry University, Pondicherry.
University of Madras, Chennai.
Though there are institutions across the country that offer BCA, the institutions in Tamilnadu alone are short-listed. Decision can be taken after seeing the advertisements from these institutions.