The Kolkata Municipal Corporation today released an audio and video C.D. in Hindi and Bengali to increase more awareness about vector-borne diseases like Malaria and Dengue. The Chairman of the Kolkata Municipal Corporation Mr. Sachchidananda Banerjee today formally released the C.D. Actor- tured M.Ps Mr. Tapash Pal, Miss Satabdi Roy, Singers Nachiketa and Lopamudra have made major contributions in the making of the C.D.