Air India — Delay of connecting flight from International to domestic

Address:

Kolkata, West Bengal, 700150

I Ms. Ujjaini Halim flew with AI 122 booking ref YE5VY from Rome to Kolkata-transit at Delhi connection AI 734 scheduled departure 12:40 pm on 21.02.2016-22.02.2016

In Delhi AI 734 flight got delayed by two hours thus my transit waiting time became more than seven hours. There was no information shared about delay, no refreshment or assistance provided for passangers like me waiting so long in transit. I am aware of certain rights of passangers in such cases. My booking can't be treated as domestic as I have same PNR for my entire booking Rome to Kolkata. Hence I believe EC Regulation on delay is applicable for me. But here no one even have any information!
The delay has caused immense stress and also loss of business for me.
I am Flying Returns member AI[protected] is my no.
I wonder whether in future AI would remain airline of my choice? Given the track record of regular delays in international connecting flights, I will surely think twice before recommending AI to others.
I fail why the national carrier is managed in such poor ways thereby paving way for more privatisation and increasing loss for airindia.
Please let me know why no information was shared on delay and why no assistance offered.
Upon hearing from AI my future course would be determined.
Yours sincerely
Ujjaini Halim