ei ta' - thus; kaiśora - the age of kaiśora (the age between the eleventh and fifteenth years); līlāra - of the pastimes; sūtra-anubandha - chronological synopsis; śiṣya-gaṇa - students; paḍāite - to teach; karilā - did; ārambha - begin.

At the age of eleven Śrī Caitanya Mahāprabhu began to teach students. This marks the beginning of His kaiśora age.