First take finely chopped cabbage onion capsicum. Grate the carrots.
In another bowl, grate or mash the boiled potatoes & add this cabbage onion, capsicum (finely chopped) and mixed with potatoes.Now add Amchoor powder, salt, sezwan sauce, soy sauce, green chilli paste.& mix it well. And make roll stuffing.

Now divide the roti into two parts. And make small rolls as shown in the pic. (Here I have taken the bar of ready spring roll.) Now apply cornflour paste on the strip. And fill the feeling and go on a tight roll and stick it with cornflour paste in the last and roll the other roll in the same way using the same method.

Now after all the rolls are done, fry in oil. And When its turn in to brown, take it out in tissue paper.So the dragon roll is ready. Serve this dragon roll hot with sezwan sauce in a serving plate.