Lenovo — Warranty service centers & customer care

Address:

Chennai, Tamil Nadu, 600116

I have a warranty . With in 2 days my warranty date going to end @ this time my mobile hanged & switched off during a call . I want to repair that problem but @ service center in arumbakkam, Chennai give me a contact number for warranty service there is no response from that number. Kindly give proper contact number & address for warranty consumable service center.