My mother makes a different kind of pancake with this but I never liked it, so I tried out this simple and easy kind and it was a hit.
1/4 watermelon's rind grated (need not be fine). Do not discard the juice while grating.
1/4 tsp salt
2 green chillies finely chopped
6 tbsp semolina ( more can be added according to the consistency)
Mix all of these ingredients and allow it to stand for 5 - 10 mins. The consistency should not be very dry or very watery. If there is approximately more than 2 tbsp of juice then more semolina can be added. The whole mixture should be wet with very little juice dripping while spreading on a hot greased pan. This is ready to be eaten or a dollop of soya butter can be added on the hot pancake. Note that both the sides of the pancake must be cooked.