Mother Dairy — Mother Dairy Classic Dahi 400 grams

Address:

Pristine Homes, Villa # 17, Maripat Road, Village - Sadullapur

I bought this Dahi yesterday from my nearby shop and the packet shows use by date of today, 22/3/2023. When I opened the packet today for eating this Dahi, I found some green plastic-type material and when I cleaned it, it seems like some algae. Is this their quality?

Mother Dairy is a big brand, in dairy products and when I see this from them, I feel like which brand I should trust on???? Please help me on this.