The new plant announced by the construction equipment manufacturer JCB India is expected to start production by the end of 2013. JCB, India?s largest manufacturer of construction equipment, has decided to set up the plant, its fourth, at a 70-acre site within the Mahindra World City (MWC) in Jaipur, Rajasthan, with an estimated investment of Rs 500 crore.JCB India operates one factory in Ballabgarh, Haryana and two in Pune.