Alright. Trying AI F for the first time on their old 777-300ER!!

I’ll essentially be connecting from an SQ Suites flight, the night prior, in DEL, with a connection of about 7 hours (planning to take a room at HI at the airport), before my AI flight.

Realistically, what should I expect from the flight (not that I’ll expect anything close to SQ level service / amenities / suite)?

Here’s what I am thinking:
1. Probably someone should call me about a day before the flight (saying where they’ll meet me, and giving me a phone number to contact them, once I reach the airport)? Do they call if someone has their international cell phone listed on the reservation, or will it be only Indian numbers that they would call?
2. Hopefully (not that I need it), someone will accompany me to check in (provided 1 happens ) and then to the lounge and onto the aircraft?
3. Better service than J?
4. Same food as J?

anything else, probably?

Edited to add: my wife is traveling with me, but she’s joining me in DEL, and will be in J. Any chance she will be able to: 1. Check in and go to the same lounge as me? 2. Probably join me for meals onboard (understanding that the catering will be that of J class)?