Call+SMS filter is not appeared in my BLU Win Jr LTE, pls help.

I have bought BLU Jr LTE in india in last year but I cant see an option to block the calls in settings ( Call+SMS and extra+Info). Can any one suggests on it? if this phone doesnt support(if those setting only supports on Lumia) then please advise any alternative apps ( True caller didnt useful much)

Thanks in advance.

Prasanth.A

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