you need not require any warranty items for nokia phones purchased from india, if you have kept the box, see the manufacturing date,there, and add 1.5 yrs to it, till this date you will receive full warranty for your mobile.
Go to local nokia care with the box, showing the year of import or manufacture and tell him the bill is lost and the shop is closed so cannot get duplicate bill, give him the box, and from the IMEI number you will get full warranty as all nokia phones, have warranty database based on IMEI, if purchased in india, and its not a grey market means a NON-MRP phone.
If your phone is an import phone, then indian warranty will not apply, all lies on the box, there is a sticker with imei, year and month of import .