To make the hummus, heat oil in a non-stick pan.
Put grams in a large bowl, add coriander powder, red chilli powder, turmeric powder, cumin powder, chaat masala, kasoori methi and salt and mix well.
Add the spiced grams to the pan and mix well for 2-3 minutes. Switch off heat.
Transfer grams into a mixer jar and grind coarsely. Add tahini, 2 tbsps lemon juice and 1 tsp garlic paste and grind again.
Add 1 tbsp lemon juice and cooking liquor (in which the grams were cooked) and grind to a fine paste.
Transfer the paste into a bowl, add remaining garlic paste, remaining lemon juice and 2 tbsps tahini paste and mix well.
Transfer into a serving bowl, press lightly with a wet fork to make a design. Then dampen the fork again, dip in red chilli powder and press over the design. Place 2-3 cooked grams on top.
To make the tomato chutney, finely chop coriander leaves.
Put tomatoes into a mixer jar and grind coarsely. Transfer into a bowl, add coriander leaves, green chillies, lemon juice, chaat masala and salt and mix well.