1) Percussion instrument 
Syahi (also known as gaab, ank, satham or karanai) is the tuning paste applied to the head of many South Asian percussion instruments like the dholki, tabla, madal, mridangam, khol and pakhavaj. ==Overview== Syahi is usually black in colour, circular in shape and is made of a mixture of flour, water and iron filings. Originally, syahi was a tempor...