Krishna Pratipad is the name for the 16th Tithi (lunar day). It's the 1st Tithi of Krishnapaksha. It's nature is Vriddhi Prada, which can be interpreted as "rise giver". But being the 1st Tithi of Krishnapaksha Krishna Pratipad is also called Galagraha Tithi. Hence, it should be left in all Manglik elections until there is a special prescription for doing something. Generally Krishna Pratipad is considered to be good for following activity: marriage, travel, house, entering into a house, Pratishta (fame, honor), shaving; such Samskaras as Seemanta, tonsure, Upanayana; peaceful & developmental works; farming; intoxicant & medicine making; oiling; bed; sitting items (Aassan), stone work, cutting of trees, sculpture, Alankar.
Referring to Muhurta Chintamani and Poorva Kalamrita Agni (Deity, who rules everything that relates to Agni Mahabhutani (primary fire element)) presides over this day and is good for all types of auspicious activity, religious ceremonies (Agni Homas, Havans, etc). Appealing to Agni and respect to Agni Mahabhutani (control of agression, giving a start for any positive dynamics, etc) is very auspicious during this day. According to Brihat Samhita, Brahma rules Krishna Pratipad, thus it also shows the overall auspiciousness of this Tithi towards starting of any positive activity.
Being Nanda (that can be translated as "prosperity", "good", "happiness") and ruled by Shukra (Venus), the 1st Tithi of Krishnapaksha is suitable for following works or actions: related to clothes; dance, vocal music, festivals, art & sculpture, painting; farming, house, clothes, Aalankar (ornament, decoration); enjoyments, Tantris Kāryas.
During the vedic month Bhadrapada Krishna Pratipad becomes Maasa Shoonya Tithi, which is considered inauspicious in succeeding in works started during this Tithi.
Lagna (ascendant or rising sign) during Krishna Pratipad becomes Tithi Shoonya (Lagna which is ruined by Tithi) for times when it is Tula (Libra) or Makara (Capricorn). Uttara Ashadha Nakshatra becomes Tithi Shoonya if it falls on Krishna Pratipad. It's considered that all auspicious works done during Tithi Shoonya periods will be destroyed.
