Gutkha ​ — the popular mixture of betel leaf, areca nut, and slaked lime, which many citizens chew and spit — ​ is highly corrosive.
Paljud linlased närivad ja sülitavad maha gutkha’t – populaarset beetlilehe, areekapähkli ja lubja segu –, mis on ääretult söövitava toimega.