Tamil Nadu Chief Minister M. K. Stalin arrived in Kerala today for the inauguration of the renovated Periyar memorial in Vaikom tomorrow. The memorial celebrates the fight against social inequality and untouchability, the Vaikom Satyagraha, that forced the custodians of the Vaikom temple to open the doors to the common people. Meanwhile, Mr. Stalin is scheduled to have discussions with Kerala Chief Minister Pinarayi Vijayan this evening on the Mullaperiyar dam issue.