The average cost of vegetable and non-vegetable thali, which were on a decline since October 2022, increased in May and June on a sequential basis following soaring tomato and other vegetable prices, a report said on Thursday."The cost of veg and non-veg thali alike, on the decline since October 2022, nosed up on a sequential basis in May and further in June 2023. Elevated prices of tomato month-on-month in June led to this increase," Crisil's monthly indicator of food plate cost revealed.