Re: To those living in Sindh province..
Though having frequent interactions with Hindus, there was something that made our family members show resistance to consume food from Hindu neighbors that they sent to us on Diwalis. My Dadi who was very much in to Sufism made that clear. It was a simple trick to recite bismillah over the food and consume it. That did the trick most of the time.
Afterwards, we siblings got Hindu friends at school and shared chat in same plates. I even had Parsad for many times.