India Post — post not reached yet

Address:

chennai, Chennai, Tamil Nadu, 600073

I have sent a parcel from tambaram east post office (600059) to sahibganj (816109) on 20th february. Officials told me that it will reach within 3-4 days. But its 8 days now, parcel not received yet and there is no status update online after wards[protected]... I even dont know, it will be delivered or not.. Plz take this issue immediately. It a gift for my little niece for her birthday,, due to delay, she couldn;t receive it on her birthday.. And i am not sure if she will and when will receive her gift