Barleria longifolia

About

Hygrophila auriculata is a herbaceous, medicinal plant in the acanthus family that grows in marshy places and is native to tropical Asia and Africa. In India it is commonly known as kokilaksha or gokulakanta, in Sri Lanka as neeramulli. In Kerala and Tamil Nadu it is called vayalchulli (വയൽച്ചുളളി) and Neermulli (நீர்முள்ளி) respectively, and in the Telugu states, it is known as Godugu-gaddi (గొడుగుగడ్డి) or Gruddi-kamanchi (గ్రుడ్డికామంచి).

Summary from Wikipedia