The Concise Oxford Dictionary of World Religions (1427 page)

(i) 
br
hma
ahaty
, the killing of a
brahman
—or of an unborn child or of a pregnant woman;
(ii) 
sur
p
na
, drinking intoxicants (see
ALCOHOL
);
(iii) 
steyam
, theft, but the circumstances are limited;
(iv) 
guruva
gan
gama
, relations with a
guru's
wife, guru being variously understood;
(v) 
mah
p
takasa
s
rga
, associating in any way with one who has committed one of the great sins. Minor sins are known as
upap
taka
, and are not so formally classified