Listen to Opening Invocation - Shlokas online. Opening Invocation - Shlokas is a Hindi language song and is sung by Suresh Wadkar, Sadhana Sargam and Dharmanshu Raval. Opening Invocation - Shlokas, from the album Om Namaha, was released in the year 2002. The duration of the song is 2:19. Download Hindi songs online from JioSaavn.