Cut paneer into small cubes.
In a bowl mix together paneer cubes, red chilly powder, salt, vinegar, arrowroot powder and a little water.
Shake the bowl so that the ingredients mix and coat the paneer. Do not break the cubes.
In a pan add ghee and arrange the paneer pieces. Fry until all the sides are golden.
Remove them and set aside.
In the bowl which you used for paneer, add the sauce, water, red chilly powder along with the residual arrowroot powder mixture.
In the same pan you used for frying paneer, add the cubed onions, capsicum, julienned ginger and chopped garlic.
Sauté until the onions are golden and the capsicum is half cooked.
Add the sauce mixture and cook for a minute.
Finally add in the paneer cubes, swirl them to coat with the sauce and remove from flame.
Garnish with coriander leaves and serve hot.