Duty-free shops at Tiruchirappalli international airport often sell items such as:

1. Alcohol and Tobacco:
   Duty-free shops commonly sell a selection of wines, spirits, and tobacco products.

2. Perfumes and Cosmetics:
   Travelers can find a range of perfumes, cosmetics, and skincare products.

3. Electronics:
   Duty-free shops may offer electronics such as cameras, headphones, and travel gadgets.

4. Fashion and Accessories:
   Clothing, accessories, and luxury items are often available at duty-free stores.

5. Confectionery:
   Chocolates, candies, and other sweets are commonly found in duty-free shops.

6. Souvenirs:
   Some duty-free stores may have a selection of local or destination-specific souvenirs.