Wash rajma and Soak it in water for 6-7 hours.Heat 1 tsp oil in a pan,add chopped Onion and Saute for 2 min till soft.Now add chopped garlic, chopped tomatoes.saute till tomatoes become soft.
Add Soaked rajma beans.Add Black pepper powder,salt,red chilli Powder.Mix well.Now add 1/4 Cup water.Pressure Cook the Rajma beans mixture for 6-7 whistles.off the flame.when pressure released, take out rajma mixture and add to a blender jar.
Blend it into fine paste.In a small bowl take corn Flour add 1-2 tsp water and make slurry.In a pan Heat 1 tsp oil,add rajma beans paste.saute well.
Add corn Flour slurry and stirr till the mixture thickens well.Take it out in a Plate.Allow it to cool Now make 12 equal portions and make cylindrical Rolls.
In a bowl mix maize flour,Wheat Flour,salt.add milk in batches and make lumpfree batter.Add 2-3 tbsp water to make pouring consistency batter.Heat a nonstick pan.spread the batter of pancake evenly,apply oil surrounding pan cake.cook on Medium flame till golden brown.
Flip the pancake to other side and Cook it till golden brown.Cut the pan cake into 12 long strips.Put each Rajma roll on a strip and wrap it into Rolls.Insert tooth pick in each roll.serve hot with tomato ketchup.
