Tikka spice mix is easy to make. Maybe you’d want to reduce the quantity as this makes 200g.
6 heaped teaspoons coriander
6 heaped teaspoons cumin
6 heaped teaspoons garlic powder
6 heaped teaspoons paprika
4 heaped teaspoons garam masala
3 heaped teaspoons ground ginger
3 heaped teaspoons dried mint
2 heaped teaspoons chili powder
The idea is you mix all these together and then keep the powder mixture for when you need it. If you couldn’t get garlic powder you could replace it with fresh garlic when you added the required amount of mix to a dish. I’ve left the mint out too and it was perfectly ok .