tumi - You; kṛṣṇa-nāma - the holy name of Kṛṣṇa; mantra - this hymn; kailā upadeśe - have instructed; mantra pāñā - getting the hymn; kā'ra āge - in front of everyone; nā kare prakāśe - he does not express.

“My Lord,” he said, “You have given him initiation into the name of Kṛṣṇa, but after receiving the mantra he will not express it in front of everyone.