susrusamanah
śuśrūṣamāṇaḥ — being desirous to hear;
SB 1.19.22
śuśrūṣamāṇaḥ — always ready to serve;
SB 2.9.41
śuśrūṣamāṇaḥ — engaged in serving;
SB 11.17.29