Better to buy a chunk of ACL around 78.00 - 80.00 LKR price range. If you're buying new, better to buy 30% of the planned share amount, thinking of DCA if the price gets dropped. DCA buying plan is as follows.
78.00 - 80.00 LKR (30%)
60.00 - 70.00 LKR (33%)
Around 35.00 LKR (37%)