In a mixer jar, add 1 cup of gathiya, 6-7 garlic cloves, 1 inch of ginger, 8-10 black peppercorns, 4-5 cloves, 1 tbsp white sesame seeds, 1 tbsp coriander seeds, 1 tsp cumin seeds, ¼ tsp turmeric powder, 1 tbsp red chili powder, salt to taste, 1 tsp garam masala, and 1 tbsp sugar. Grind into a coarse powder.
Transfer the ground powder to a mixing bowl, add 1 tsp lemon juice, 1 tbsp oil, and some coriander leaves. Mix well. The masala is ready.
Take two same-sized potato slices and stuff the masala between them.
Coat the stuffed slices with the besan batter, removing any excess batter.
Heat oil and add the bhajiya, frying on medium flame until crispy on both sides.
Batata dabda bhajiya is ready to serve with besan kadhi and dahi chutney.