Hi Sujai, both of these variants of Hyundai Santro are good .. Hyundai Santro GLS LPG has few more features in comparison to Santro GL LPG .. my suggestion is to go for GLS LPG as it has more features and there is not so much difference in it prices ... the addition feature it carries are Central Locking, Body Colored Bumpers, Waistline Moulding, Rear Spoiler, Full Wheel Cover, Driver side Front Door Map Pocket, Door Trim with Fabric Insert, Internally Adjustable ORVMs, and Front Power Windows ... for more details about the car you may visit the given link ...
You can easily book a Hyundai Santro Xing from there by approaching to the authorized Hyundai dealer through phone or email. All you need to do is, talk to the dealer and arrange the booking amount and you can get the delivery of the vehicle upon your arrival in the country. To get details of the authorized Hyundai dealers in India, Kindly visit the below link: -
There might be two problems regarding this issue in Hyundai Santro Xing. Either there are some dirt particles present in the throttle body of the vehicle or there might be some issue with the sensors. Kindly take your vehicle to the authorized Hyundai service center and get it checked there by a professional mechanic.