The 68 Park Road restaurant was established in 1964 and describes itself as the birthplace of chicken tikka masala.
It remains family run and received two AA rosettes in 2025.
Earlier this year it collaborated with German Doner Kebab on a limited-edition “Tikka Masala OG Kebab”.
The restaurant also sells a range of sauces for home cooks, including tikka masala.
It is claimed that the restaurant’s late owner Ali Ahmed Aslam invented the dish in 1971, but some other UK restaurants also claim to have created it.
It is based on the northern Indian dish chicken tikka of boneless chicken marinated in yoghurt and spices.
The UK take sees the spice toned down and the addition of cream and tomato.
It may also have been partly inspired by murgh makhani (AKA butter chicken), which was developed in Delhi during the mid-20th century as a way of reviving leftover tandoori chicken in a sauce of tomato, butter and cream.
It was at one point considered Britain’s national dish.
Shish Mahal Ltd entered creditors’ voluntary liquidation on 14 September with the notice published on 18 September.
Derek Alan Jackson of Grainger Corporate Rescue & Recovery was appointed liquidator.
Shish Mahal has been contacted for comment.