so 'carad duṣkaraṁ tapaḥ

tam-that; abrmhitam-not increasing; alokya-seeing; praja-sargam-the creation of the living entities; prajapatih-Daksa, the generator of living entities; vindhya-padan-the mountains near the Vindhya mountain range; upavrajya-going to; sah-he; acarat-executed; duskaram-very difficult; tapah-austerities.