Vk Sasikala Jathagam Tamil / Jathagam, horoscope and birth chart in tamil (ஜாதகம்) offered by tamilsonline include free jathagam kattam and jathagam palangal based on tamil a jathagam is an astrology chart or diagram specifying the angular positions of the nine grahas (planets) at the exact time of a person's birth.