Nokia 6500s-1 undo restriction code

HI can you please help me as i have a NOKIA 6500s-1 handset of UK and i want TO insert another network SIM . and when i insert other sim it asks for Restriction code. Please help me . this is the detail of mobile Nokia 6500s-1 V04.81 RM-240 (c) Nokia Varant:01.06 IMEI: 353076027844417 Language: V 04.81 Service by United Kingdom-3 Contact me at: [email protected] Dear Sir/Madam I have Nokia 6500s-1 slide of UK and now i want to use this phone India And it need a restriction code when simcard is inserted in the phone , please help me to solve this problem phone details:- IMEI:- 355731025413072 TYPE:- RM-240 MODEL:- 6500S-1 restriction code for my nokia 6500s-1 i tried unlocking my phone and then it stops and replies that it connoy undo restriction code. pls help me get a restriction code. and/or mail [email protected]