HSRP sticker lost while installing cooling film. Is this mandatory in Kerala

A couple of days ago I installed cooling film in my vehicle. I did not take notice that my hsrp sticker was lost in the process. I wasnt aware that it is mandatory till my friend told me yesterday. I tried bookmyhsrp site to reorder the sticker but unfortunately the site does have Kerala listed. Could someone tell me if this is mandatory within Kerala and how can I get the replacement for the same?