Hayanaratna · by Balabhadra
Chapter 1 · Planets, Signs, Year Entry
ग्रहराशिस्वरूपवर्षप्रवेशाद्यानयनाधिकारः
लग्नानयनमुक्तं पद्धतौ ॥समासमाजस्त्रिगुणस्समानां दशां १० शयुक्तो जनिलग्नयुक्तः ॥सूर्यो १२ हृतः शेषसमं विलग्नं सामान्यतो मानतमैरगादीति ॥
Finding the lagna (rising sign) is told in the Paddhati. Multiply the years gone by 3. Add a tenth of the years. Add the birth lagna. Divide by 12. The lagna is equal to the remainder. The most honoured teachers have said this as a rough rule.
Simple meaning: Lagna at the year entry, roughly: years gone times 3.1, plus the birth lagna, remainder by 12.
अत्र तिथिनक्षत्रयोगोवर्षप्रवेशदिवसस्य प्रायो नैकत्वेनायाति ॥
A warning: the tithi, nakshatra and yoga found this way are often not those of the entry day.
उक्तं च सुधानिधौ ॥
Sudhanidhi: the weekday of the year entry is sure; the nakshatra and yoga are only estimates.
लग्नमपि कालनैकट्ये समायातीति ज्ञेयम् ॥
Lagna at the year entry: it comes out close, not exact.