Nokia Lumia 535 error- try again in 323240 minute - phone locked

[jaikishan]

Sir

Please help me, I found my phone off and when I turned it on, it is asking me to wait for 323420 minutes to enter password. I think someone tried to enter wrong password behind my back and now it is not unlocking. But usually it asks to wait for 1 minute but not 323420 minutes. That is almost 36 years to wait, I will die rather than waiting for my phone to get unlocked. Sir please tell me how can I fix it, is there any way to fix it without going to service center .

Its only few months old Microsoft Lumia 535 and was working fantastic otherwise.