Greaves Cotton subsidiary, Greaves Electricity Mobility Ltd., has filed preliminary documents for an IPO to raise up to Rs 1,000 crore.The IPO will consist of a sale of up to 18.9 crore shares and a fresh issuance of shares worth Rs 100 crore.Greaves Cotton will serve as the sole promoter offloading shares, while Abdul Latif Jameel Green Mobility Solutions will sell its stake.Shares of Greaves Cotton surged by over 12% following the IPO announcement.