Udaka Vadya is an Indian musical instrument. It is assumed either this musical instruments had been Jal tarang or similar to it. This percussion instrument has been categorized in medieval musical treatise under Ghan Vadya (diophonic instruments where the sound is produced by striking a surface). This instrument has been mentioned in Vatsyayana's Kamasutra, also Sangeeta Parijata of the 17th century mentioned about this instrument. The skill to play this instrument was one of the essential 64 kala to be learnt by a woman.
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Udaka vadya Wikipedia(Text) CC BY-SA