Maruti Suzuki is witnessing a sudden surge in demand for its diesel models, compelling the maker of the Vitara Brezza and Dzire to ramp up production of some of the variants that it plans to phase out before the new emission standards come into effect in April.Huge discounts and extended warranty that the company is offering to clear the inventory of Bharat Stage-IV variants have attracted consumers looking for value buys.In fact, including other models, the local subsidiary of Japan’s Suzuki Motor will be producing around 30,000 units of diesel vehicles in the next three months, which is almost 30-50% higher than its previous plan. The company has hired back close to 1,000 temporary workers it had previously let go of as the diesel variants of the Brezza and Dzire Tour, and other models like the new WagonR, S-Presso and XL6 have a waiting period for delivery.