In a pan toast all the spices on low heat until aromatic making sure to not burn it.
Transfer into a spice grinder and coarse grind the spices.
In a ziplock bag mix all the marinade ingredients except oil and keep it in the fridge for a few hours or overnight.
When ready arrange on a greased foil lined baking sheet,drizzle oil all over and broil until all golden turning the drumsticks every now and then to develop color on all sides.
Brush the sides with the remaining marinade to keep them moist and flavorful.
Sprinkle some lemon juice and chaat masala all over and serve warm!