As the information of the restaurant, Frog Prince, Malhar Road, alleged serving beef (cow meat) spread in the city, around 500 members of Gau Gram Seva Samiti, Punjab, thronged the restaurant in protest late on Saturday evening.
The members said that they had called up the health department officials to take samples of dishes served here to check the presence of beef.
Notably, a dish in the menu mentions 'steak', which generally refers to a big slice of beef. However, of late, the term has begun to be used for other meats too.
A waiter at the restaurant told Hindustan Times that they use buffalo's meat in the dish.
The members of Gau Gram Seva Samiti told HT that they would protest against the restaurant even if they were serving buffalo's meat.
Meanwhile, restaurant manager Vipin told HT that it was 'pork' that they were serving.
Talking about the laws related to cow slaughter and sale in Punjab, advocate Harpreet Sandhu told HT: "Although the religious sentiment drives the enactment of these laws, Article 48 of Indian Constitution, 1950, directs states to protect cows as part of the effort to organise agriculture and animal husbandry on modern lines.
"In Punjab, restaurants cannot sell beef unless they prove that the beef served has been imported into the state from a foreign land. Slaughter of cows is banned in Punjab."