Qatar Airways — Baggage yet to be received - QR 720/572 Seattle to Bangalore

I travelled from Seattle USA to Bangalore via Qatar Airways QR 720 from Seattle to Doha and then QR 572 from Doha to Bangalore on 3rd Jul. However the flight from Seattle to Doha was delayed and I missed the connecting Flight to Bangalore. So Qatar airways arranged my trip via Bombay through QR 556 and then Vistara airways from Bombay to Bangalore. However, I did not get my 1 Baggage at Bombay airport. I checked with Qatar airways and they mentioned the baggage was not picked up from Doha. I registered a complaint in Bombay airport.

The Baggage tag details are

QR 432625

Name: Hariharan Subramanian Noorani

Till date I have not received my baggage and it is 4 days now. I am extremely disappointed with this terrible experience with Qatar airways. I specifically planned Qatar airways on my return leg while taking Lufthansa to USA from Bangalore. This now makes me believe that I should not consider this airline further. Request that the baggage be traced and delivered asap to my address which has been provided in the complaint