Jai Suspension Systems Ltd. Subsidiary of Jamna Auto Industries Ltd. and have been ranked 4th in the world and No. 1 in India. JAI, known by its two brands JAI & JPSL, are the largest manufacturers of leaf springs and suspension system with an annual turn over of Rs 661 crores last year. JAI group has five technically advanced manufacturing plants spread over Madhya Pradesh, Haryana, Tamil Nadu and Jharkhand & Uttrakhand.