i. Muhurta is also known as Electional Astrology or Elective Astrology. Muhnrtas means electing or choosing an auspicious or favourable day calledpanchangshuddhi to commence an important auspicious work. After selection of day, one is to choose an appropriate time to commence this auspicious deed. Such election of time is called lagna shuddhi.
ii. If you take care of the beginning, end will take care of himself is the rationale of Muhurta.
iii. Muhurta is a measure of time also. (2 ghatis = 1 Muhurta = 48 minutes)
iv. Tithi or a lunar day = 29. 32/62 muhurtas or one solar day = 30 muhurtas.
v. Dinmaan is divided in 15 equal parts and one part = one muhurta.
vi. Muhurta has five important components - tithi, vaar, makshatras, yogas & karnas.
vii. There are 27 nakshatras. Some times we use 28lh nakshatra called abhijit which falls in 6° 40' to 10° ,53' 20" in sign Capricorn. Amongst 28 nakshatras, this becomes 22nd nakshatra.
Panchanga Shuddhi: It is to find out auspicious day to commence any good deed. Apanchanga consists of tithi, vaat, nakshatra, yoga and karana. All these must be auspicious. In tithis, 4th, 6th, 8th, 12th, 14th, full Moon and new Moon should be avoided. Thursday and Friday are suitable for all works. Tuesday be avoided except when it is 10th, 12th, or 16th day of the child birth for his namakarana. Bharani and Krittika nakshatras are bad. Last parts of Aslesha, Jyestha and Revati should be avoided. Vishti karana is very bad. Yoga no. 6,9,10, 17,27 are extremely bad. Panchanga Shuddhi means a good lunar day, a beneficial weekday, an auspicious constellation, a good yoga and a fertilising karana.
Lagna Shuddhi: It is to find out auspicious lagna or time for muhurta. Avoid debilitated or retrograde lagnesh. Lagnesh should not be in enemy's sign or in 8th house. All planets are shubha in 11th house. Sun and Saturn in 3rd or 8th house, Moon in 3rd or 12th house, Mars in 3rd or 6th house, Mercury and Venus in 2, 3, 4, 5, 6, 9 or 10th house and Rahu in 2, 5, 6, 8, 9, 10 or 12th house are shubha. Venus, Mercury or Jupiter in lagna cancels all doshas in muhurta kundli. Generally, benefic in angles or konas, malefics in 3, 6, 11 houses with 8th and 12th houses vacant are best. Lagna should be strong and 7th house be better vacant. 8,h and 12th rasis from Janama Rasi or Janama lagna be avoided as muhurta lagna. Signs 3, 6, 10, 11 from Janama Rasi are good as muhurta lagna. 8th house if vacant in all cases is shubha.
Nature of an activity should be matched with the nature of a sign, e.g. fixed signs are good for construction or entering a house or marriage or coronation or occupying a chair. Movable signs are good for starting journey or business etc. shirshodaya (3, 5,6, 7, 8, 11) lagnas are benefic.
To know how will be the day and then to elect good time, following hints shall be helpful:
How will be the day?
Some specific periods in various tithis to be avoided for auspicious acts
Some specific periods in Karna
Nakshatras and Classification of nakshatras
Vivaah panchang shuddhi
Common janma-nakshatra of the bride and the groom
Yogas formed by combination of tithi, vaar & nakshatra
Marriage samskars Lagna shuddhi in marriage or vivaah muhurta kundli
Important considerations on bhadra
Journeys, Travels (Muhurta)