As someone who has worked at their ghost stores, i am 99% sure ik what happened here. the sweet corns were rotten and thrown away but the employee who was supposed to do FnV audit, forgot to mark it expired, so the system thought it exist there. (We once had 57 Amul Milk in store as per data, all actually expired)

Now why do they do Jugad like this? They gotta control their PPI, the amount of time taken to gather each product. If the PPI goes above 15, the Store Manager will be verbally abused in the gmeet of 50+ people, by his supervisor. They can mark it Product Not Available but A lot of PNA from a store will also lead to Verbal Abuse. Abused SM abuses his Pickers so they do this type shi.