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According to Suryasiddhanta the number of days from the beginning of Kaliyuga up to midnight on the 15th day of increasing moon of Aswina is 1,593,072 (the number of Adhikamasansas (extra months) during the interval being 1608 and the number of Kshayathithis 25,323.
If we divide this number by 7 the remainder would be 5. As Kaliyuga commenced with Friday, the period of time above defined closed with Tuesday, as according to Suryasiddhanta a week-day is counted from midnight to midnight.
It is to be noticed that in place where Barhaspatyamanam is in use Krishnapaksham (or the dark half) commences first and is followed by Suklapaksham.
Consequently the next day after the 15th day of the waning moon of Aswina will be the 1st day of the waning moon of Kartika to those who are guided by the Barhaspatyamanam calendar. And therefore the latter date, which is the date mentioned in the inscription, was Wednesday in the year 4362 of Kaliyuga.
The geocentric longitude of the sun at the time of his meridian passage on the said date being 174°—20′—16″ and the moon's longitude being 7°—51′—42″ (according to Suryasiddhanta (it can be easily seen that at Gaya there was Padyamithithi (1st day of waning moon) for nearly 7 ghadias and 50 vighadias from the time of sunrise.
It is clear from the foregoing calculation that "Kartika 1 Badi" coincided with Wednesday in the year 4362 of Kaliyuga or the year 1261 of the Christian era, and that from the standpoint of the person who wrote the inscription the said year was the 1819th year of the Buddhist era. And consequently this new inscription confirms the correctness of the date assigned to Buddha's death by Buddhist writers. It would have been better if Major General Cunningham had carefully examined the basis of his calculation before proclaiming to the world at large that the Buddhist accounts were untrustworthy.
