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("Brahmotsavam idi brahmotsavam") proclaims this as the "Festival of the Lord of the Universe" ( Brahmanda Nayakuni A Visual Feast: brahmanda nayakuni brahmotsavam song by spb free top
While many artists have rendered this keertana , SPB's version is widely considered the "top" devotional track due to his emotive and heavenly vocal delivery. You specifically asked for a free top source