Sri Lanka opposition protest to block Packer's casino plans
* Buddhist leaders, opposition renew protest against casino
* Packer's Crown Resorts won cabinet approval for projects in September
* President Rajapaksa says no hotel projects will have casinos
* President's brother says: no tax concessions for casinos
By Shihar Aneez
COLOMBO, April 24 (Reuters) - Hundreds of Sri Lankan opposition party members marched in protest in Colombo on Thursday to pressure the government to stop Australian gambling tycoon James Packer from opening casinos in hotel projects planned by his Crown Resorts Ltd.