New Delhi, Nov 27 (ANI): Media portal mediasarkar.com which conducted a sting on Aam Aadmi Party (AAP) candidates on Wednesday filed a criminal defamation case against AAP chief Arvind Kejriwal and four other colleagues. Mediasarkar head Anuranjan Jha named Kejriwal, Manish Sisodia, Shazia Ilmi, Kumar Vishwas and Yogendra Yadav in the case.