Parle — odd smell in parle platina hide and seek biscuit packet

This is to inform you that we observe an odd and disgusting smell from hide and seek biscuits when opened and while eating the biscuits.
Pkd date 9/9/19 best before 7months (Suspect: generally we see 6months) as mentioned on the cover.
Batch no: hy9ap
We are buying this from a nearest provision stores and we observed this odd smell last month and this month as well
Children are not showing interest to consume them and we do not no the consequences. At home they started drying them openly to get rid of the smell and the biscuits got soiled by getting soft and smelly.
Instantly, i did not believe when this was told to me at home, but i just opened a new packet and observed it myself. At home family members thought some kerosene like smell, but seems very odd to me, as well.
Could you please look into the matter an solve the problem