Sony Ericsson Mobile Modle No. Z550i

i lost my Sony Ericsson Mobile Modle No. Z550i block on 4th Feb 2008 at Jashpur, the IMEI No was -35212401-338168-8 Please trace my mobile phone or tell me the appropriate way to find my phone.
hoping for positive response at your end.
Thank you
john
cell no 9949417997