sei kṛṣṇa — navadvīpe śrī-caitanya-candra
sei balarāma — saṅge śrī-nityānanda
sei kṛṣṇa - that original Kṛṣṇa; navadvīpe - at Navadvīpa; śrī-caitanya-candra - Lord Śrī Caitanya Mahāprabhu; sei balarāma - that Lord Balarāma; saṅge - with Him; śrī-nityānanda - Lord Nityānanda.