Immobilisers are coming to all cars very soon as per new govt laws, the only question is when will they come. Indus and Suzuki already got a stay order on the delivery date law the govt passed. They all probably got a similar stay order for the immobiliser and other safety laws that were passed, so that'll most probably come in the 2018 city.
If you have any timeframe, or source for your information, please do share.