These produce accurate South/North Indian charts, dashas (Vimshottari, etc.), and ashtakavarga for free.
If you want powerful Vedic astrology software without paying, try these: parashara light 8.0 free download
Geocentric Software does not offer a free version of Parashara Light 8.0. They may provide a limited-time trial or a severely restricted demo (e.g., printing disabled, limited chart saves), but there is no legal, permanent "free download" of the full version 8.0. These produce accurate South/North Indian charts