MALAPPURAM: A case has been taken against four people for defaming Chief Minister Pinarayi Vijayan in the social media. The case has been taken against Sayyedalavi of Karingapara, Nazar of Manalippuzha, Razim Rehman Koya and Arakkal Abu. The case is for morphing the chief minister’s picture. The case was taken on the complaint of CPM activist Kolakkattil Sasi.