Autumnal veggie curry

Name: Autumnal veggie curry
Prep time: 10 min
Cook time: 30 min
Total time: 40 min
Cuisine: Indian, World Cuisine
Ingredients: 400g squash - cut into chunks; 1 sweet potato; 1 aubergine - roughly chopped; 1 red pepper - deseeded and roughly chopped; 2 tbsp vegetable oil; 2tsp coriander seeds; 2tsp cumin seeds; 1 red onion diced; 2cm piece of ginger, finely grated; 2 cloves garlic, grated; 1 red chilli, finely chopped; 1tsp ground cumin; 2tsp garam masala; 1 tsp turmeric; 250g cherry tomatoes; 1 x 400g tin of chickpeas; 1tbsp tomato puree; 1 x 400g light coconut milk; 20g fresh coriander, roughly chopped; Lime to garnish