We are a sub - contractor of DMRC and using TATA products for last 9 years . We have - 4 Nos. of Hitachi-200ex, 10 HYVA, 8 1612 Tipper. All our vehicles are used to serviced at our nearest TATA autho. service center - M/S - NORTH DELHI MOTORS, ALIPUR, Bypass, GT Karnal Road, DELHI . From past 2 years we have noticed that original parts of our vehicles are replaced by duplicate one by workshop members . & when we caught them red handed while doing so, the owner of workshop starts abusing us and refused to return the parts. And they have repaired our EX-200 engine 3 times...