Hayanaratna · by Balabhadra
Chapter 1 · Planets, Signs, Year Entry
ग्रहराशिस्वरूपवर्षप्रवेशाद्यानयनाधिकारः
अथ संक्रांतितिथिज्ञानोपायः ॥शाके नवाश्विति १५२९ ध्यूने रुद्रै ११ रामैर्गुणेषुभिः ५३॥निघ्नो रुद्रा११न्वितः खाग्नि ३० तष्टोमेषाहजातिथिः ॥१॥
Next, the way to know the tithi (moon day) of a sankranti (the Sun's entry into a sign). Take the Shaka (Indian era) year less 1529. Multiply it in three places by 11, by 3 and by 53. Add 11 to the first. Cast out thirties. The remainder is the tithi of the Aries day.
Simple meaning: Tithi of the Aries sankranti: Shaka year less 1529, times 11, 3 and 53 in three places, plus 11, remainder by 30.
द्वि २ वेदां ४ गा ६ ष्ट ८ दि १० ग्रुद्रा ११ युता स्यादन्यसंक्रमे ॥
Tithis of the other sankrantis: add 2, 4, 6, 8, 10 and 11 to the Aries tithi.
अथ वर्षप्रवेशे संक्षिप्तपञ्चाङ्गफलमुक्तं त्रैलोक्यप्रकाशे ॥
Tithi at the year entry: Nanda, Bhadra, Jaya and Purna tithis are good; the empty tithis and those from the 12th on are not.
सोमो बुधो गुरुः शुक्रो वाराश्चत्वार उत्तमाः॥
Weekday of the year entry: Monday, Wednesday, Thursday and Friday are best; Tuesday, Sunday and Saturday bring loss and fear.