Chandrakala nadi is popular nadi in Kerala, it is written by  sri achuta,  it gives a lot importance to navmasha. Concepts like planets exalted in rashi , if debilated in navmasha gives neech phala get mentioned here. It also have notes about cancellation of raj yoga. Importance of chandrakala nadi is it gives importance of transits of Saturn or Jupiter over 3 natal lords, lord from Chandra, surya and lagna. Some good or bad event occurs accordingly