Applying for BCA without having studied Maths is actually not advisable. However, IGNOU does offer the option of BCA provided the student completes the required Maths papers in the three years duration of the programme. You may locate to study centres of IGNOU in Andhra Pradesh from www.ignou.ac.in. For other Andhra Pradesh based options, survey the options under Andhra Pradesh University (http://www.andhrauniversity.info/) and Osmania University (www.osmania.ac.in) to name a few options.