Bhagavad Gita Chapter 1.19
sa ghoṣo dhārtarāṣṭrāṇāḿ
hṛdayāni vyadārayat
nabhaś ca pṛthivīḿ caiva
tumulo ‘bhyanunādayan
Translation
The blowing of these different conchshells became uproarious. Vibrating both in the sky and on the earth, it shattered the hearts of the sons of Dhritarashtra.