From Wiktionary, the free dictionary
Borrowed from Sanskrit समर्थक (samarthaka).
سَمَرْتھَک • (samarthak) m (Hindi spelling समर्थक) (rare, India)
- supporter, backer
- Synonyms: ہِمایَتِی (himāyatī), طَرَف دار (taraf dār), حامِی (hāmī)
وہ بہت ساری سیاسی پارٹیوں کا سَمَرْتھَک ہے.- He is a supporter of many political parties.