śaṅkha - conchshells; tūrya - bugles; mṛdaṅgāḥ - drums; ca - also; neduḥ - vibrated; dundubhayaḥ - kettledrums; samam - in concert; prayāṇa-prakrame - at the time of departure; tāta - O beloved son; vara-vadhvoḥ - of the bridegroom and the bride; su-maṅgalam - for the purpose of their auspicious departure.

O beloved son, Mahārāja Parīkṣit, when the bride and bridegroom were ready to start, conchshells, bugles, drums and kettledrums all vibrated in concert for their auspicious departure.