Air India — luggage delayed

My brother shri sandipan dutta & his wife srimati singing sikdar dutta, staying at us, had availed the air india flight having the following details:
Flight details : dl 4920 / 15 dec ai 102 / 15 dec
Routing : orf / jfk / del

At delhi, it was identified that the airline had left all luggages at new york and this couple who have come to india for a week to impart lectures at the iit mumbai are in deep trouble as all their daily requirements, clothing and every need for this duration are with the airline. Today its 19th and 3 days are just wasted when the airline team are almost reluctant to provide much details on the luggage whereabouts.

We could only find a little details (Which is like non-interpretable to the commoners).

We would like the airline company to compensate the delay and the harassment arising from their entire mis-handling and mis-management.

Reference luggage tracing site: https://wtrweb.worldtracer.aero/WTRInternet/wtwflowinternet.do?_flowExecutionKey...⇄

File reference: delai30475
Name: dutta