Squeeze out excess water from soaked bread.

Combine all the ingredients except oil and breadcrumbs for coating in a large bowl. Divide the mixture into 4 even portions and shape each portion into a disc. Coat in breadcrumbs. Set aside.

Meanwhile, heat oil for shallow frying in a large frying pan over medium-high heat. Add the patties and cook for 2-3 minutes each side or until golden brown. Transfer to a plate.

Spread a tablespoon of butter on the cut side of burger buns. Place the buns in the pan with cut side facing down. Toast until golden brown. Remove from pan.

To assemble the burger, place the base of each burger bun on serving plates. Top with chili mayo, aloo tikki, onions, tomatoes and top of burger buns. Serve immediately.

Add a side of French fries if you like.