We don't have synonyms for gutkha yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are gurkha and gutka.
(n) :
Alternative form of gutka. [A preparation of crushed areca nut, tobacco, catechu, paraffin, slaked lime and sweet or savoury flavourings, chewed recreationally in India.]
(n) :
Alternative form of gutka. [A preparation of crushed areca nut, tobacco, catechu, paraffin, slaked lime and sweet or savoury flavourings, chewed recreationally in India.]