Make the chutney first. Put four tablespoons of the oil in a large saute pan on a medium-high heat and, once hot, add the garlic, ginger and chilli, and cook, stirring occasionally, for two minutes, until fragrant.
Add the tomato paste, spices and sugar, cook, stirring, for a minute more, then add the chopped tomatoes, a teaspoon of salt and a good grind of pepper. Bring to a simmer, then turn down the heat to medium and leave to cook, stirring regularly, for 45 minutes, until the tomatoes have broken down and the mixture is nice and thick.
Spoon 150g of the chutney mix into a bowl, and leave both the chutney in the bowl and the pan to cool.
Heat the oven to 200C (180C fan)/390F/gas 6. Line a standard (1kg) loaf tin with a piece of greaseproof paper large enough to cover the bottom and sides.
Put the grated courgettes and half a teaspoon of salt in a bowl, mix to combine, then leave to steep for 20 minutes. Tip the courgettes on to a clean tea towel and wring out as much liquid as possible – you should be left with about 180g of strained courgette – and set aside.
Put the flour, baking powder, bicarb, garam masala, sugar and a teaspoon of salt in a large bowl and mix to combine.
In a second bowl, whisk the eggs, oil and yoghurt, then stir in the cheddar and coriander. Put this, the strained courgette and the reserved 150g tomato chutney in the flour bowl and mix gently to combine.
Transfer to the lined loaf tin and smooth out the top. Arrange the halved cherry tomatoes cut side up on top, gently pushing them into the dough without fully submerging them.
Drizzle with the final tablespoon of oil, bake for 40 minutes, then remove from the oven and lower the temperature to 190C (170C fan)/375F/gas 5.
Cover the loaf with foil, then return to the oven and bake for 45 minutes more, or until a skewer comes out clean from the centre. Leave to cool in the tin for at least 30 minutes, or longer, if time allows.
Cut the loaf into 2½cm slices. Spoon the chutney into a bowl, stir in the remaining tablespoon of oil and serve alongside the bread.
