CHAPTER XLIL 373
with a samdhi and a samdhydriisa, each of 300 years, a
tretdyuga has 3600 years.
"Two thousand years are a dvdpara, but together
with a sctmdhi and a samdhydmsa, each of 200 years,
a dvdpara has 2400 years,
"A thousand years are one kali, but together with a
sctmdhi and a sariidhydmsa, each of 100 years, a kali¬
yuga has 1200 years."
This is what Brahmagupta quotes from the book
Smriti.
" Divya years are changed into human years by being Duration of
TTT1 ^ A T11P 1 ^^^ single
multiplied by 360. Accordingly the tour yitgas have yugas.
the following sums of human years :—
A kritayuga has 1,440,000 years,
besides 144,000 ,, sarhdhi,
and 144,000 ., sarhdhydrfisa.
Sum total 1,728,000 years = one kritayuga.
K tretdyuga hSiS i ,080,000 years,
besides 108,000 ,, sarfidhi,
and 108,000 ,, sarhdJiydmsa. Page 188.
Sum total 1,296,000 years = one tretdyuga.
A dvdpara has 720,000 years,
besides 72,000 ,, sarhdhi,
and 72,000 ,, sarlidliydrhsa.
Sum total 864,000 years = one dvdpara.
A kali has 360,000 years,
besides 36,000 ,, sarhdhi,
and 36,000 ,, sanidhydmsa.
Sum total 432,000 years = one kaliyuga.
"The sum of the krita and tretd is 3,024,000 years,
and the sum of the krita, tretd, and dvdparct is
3,888,000 years."
Further, Brahmagupta says that "Aryabhata conAryabhata
. T , 1 (. ^ c ^ i> ^"^ Paulisa
siders the tour yugas as the four equal parts of a catur quoted by
yuga. Thus he differs from the doctrine of the book gupta.'
Smriti, just mentioned, and he who differs from us is an
