Swamy, a close friend of the Rajapaksa family, also met with Gotabaya's brother Mahinda Rajapaksa on Wednesday evening and attended the Navratri pooja at his residence.
Sri Lankan authorities on Wednesday deployed troops and military vehicles in the streets to ensure public security in the capital amidst nationwide protests over the government's failure to tackle the worst economic crisis.
Sri Lanka claimed on Wednesday that an inquiry had found no truth in reports that military guards had traded sex for food in welfare camps set up for Tamil refugees during the final phase of the country's war against the Liberation Tigers of Tamil Eelam.