Popular Malayalam playback singer Najim Arshad is pleased as punch as his duet with Harini, picturized on Madhavan and Anushka Shetty in the Telugu movie 'Nishabdham' has been released on video-sharing platform YouTube. This is Arshad's first release on an OTT platform after lockdown curbs were eased and the happiness was evident in his voice. Prior to that, Arshad had …