Indian packaged food market as well as fast foods, fast casual is a huge market. Haldiram's in India is a very trusted, high brand recognition name. They also sell products in overseas markets like USA, UK, Australia.
I will add more to this post later
In terms of standardization, packaging and a high quality feel Haldiram's is very much at the top. Regionally I know that Adyar Grand Sweets in Tamil Nadu has a similar reputation/ record on packaged foods.
https://www.financialexpress.com/industry/haldirams-ipo-soon-with-1-billion-sales-indias-homegrown-food-company-has-this-plan/1862410/