Catering has become a popular business , providing food service at a remote site or a hotel, public house (pub), or at any other locations. Catering can either focus on only one cuisine, for example an vegetarian catering business focuses only on serving Indian cuisine, or it can focus on multiple cuisines, for example a catering business serving variety of cuisines from different countries. The variety and flavor of vegetarian food is making its grip around the world. This has resulted in more demand for vegetarian food.

South Indian is one popular cuisine, which has become popular amidst the caterers in UK. South Indian cuisine includes the cuisines of the five southern states of India: Andhra Pradesh,  Karnataka,  Kerala,  Tamil Nadu and Telangana.
 
There are various types of south Indian cuisines which belong to different states of India. These types are
 1.  Andhra Food
 2. Karnataka Food
 3. Tamil Food
 4. Kerala Food

The similarities between the south Indian cuisine of five states' of India  include the presence of rice as a staple food, the use of lentils and spices, dried red chilies and fresh green chilies, coconut, and native fruits and vegetables including tamarind, plantain, snake gourd, garlic, and ginger. The four cuisines have much in common and differ primarily in the spiciness of the food.