Ugra is one of the hundred sons of Dhṛtarāṣtra (Dhritarashtra) and Gāndhārī (Gandhari). On the fourth day of the War of Kurukṣetra (Kurukshetra), he was killed by Bhīma (Bhima).

Mahābhārata (Kinjawadekar)(1.67.103; 1.117.12; 6.64.29, 34)
Mahābhārata Vols. 1-43 (Siddhāntabāgīśa)(1.62.105; 1.111.12; 6.63.30, 35)