ICS Softwares. Tamil Astrology Software based on VAKKIA PANCHANGAM. Free for Current Year Only. We can calculate Horoscope in Tamil with full details of Astrological Calculations. Dasa Varga Charts Calculations, Dasa Bukthi Calculations, Bhava Spudam &. Predictions. Matching with Dhosa Samya. Now, with Chart Style changing Possibility. Now, it is more user friendly.