It's really vile and disgusting if the housemates are doing discrimination in distributing food among themselves.
It looks like a small petty issue, but it's actually not. Food is very important for them to stay in that toxic and stressful house, and they get limited amount of ration for a week.
If the people who got the kitchen duty are not giving proper amount of food to selective housemates, then that's vile and disgusting.
While Vikas is a shady guy, who most probably was looking for attention and sympathy.... this issue was important to be discussed.
These so-called original contestants are not only discriminating the challengers by bullying and ganging up on them, they're also discriminating them in giving basic things like food.