Turnover was 405.22 million rupees, down from 781.96 million rupees a day earlier with 93 stocks closed positive against 93 negative.
No off-market transaction reported on Tuesday.
Laugfs Gas non-voting shares closed 40 cents lower at 30.00 rupees, attracting most number of trades during the day.
Foreign investors bought 84.49 million rupees worth shares while selling 75.89 million rupees worth shares.
Lion Brewery Ceylon closed 25.50 rupees lower at 419.50 rupees and Trans Asia Hotels closed 5.70 rupees lower at 91.30 rupees, contributing most to the index drop.
Dialog Axiata closed 10 cents lower at 9.80 rupees and Sri Lanka Telecom closed 10 cents lower at 48.00 rupees.
Carson Cumberbatch group’s oil palm firms, Indo-Malay closed 98.70 rupees lower at 1,701.30 rupees and Good Hope closed 237.00 rupees higher at 1,745.00 rupees.
Nestle Lanka closed 37.60 rupees higher at 1,940.00 rupees and CT Holdings closed 2.90 rupees higher at 135.00 rupees.
Commercial Leasing and Finance closed 10 cents higher at 4.10 rupees and Commercial Bank of Ceylon closed 40 cents higher at 130.40 rupees.