DTSI meansD stands for DIGITALT stands for TWINS stands for SPARKI stands for IGNITION

The Dtsi is the advanced spark plug ignition system introduced by bajaj in pulsar 180. this is the best fuel ignition system ever used in bikes, in this the two spark plugs are situated on cylinder wall as they at 45 degree agle. so when half charge packet(Air fuel ratio) gets burn by 1 spaqrk plug and another one with 2nd spark plug, this gives better fuel burn at higher speed ratio of the piston.