Indian Airlines
Missing of Connecting Train due to Incoming flight delay

I had booked tickets from Kolkata to Delhi on 12th Oct :

IC201-Dep-17.00-Arr Delhi-19.00

Unfortunately, I was accomodated in IC 402 which arrived at about 22:30 and I missed the train 2425 Ex New-Delhi to Jammu Tawi, which was sheduled to depart at 20:40. I requested at Kolkata Airport Duty Manager-about my compulsion, but all in vain. Kindly let us know how to proceed further.