Black-eyed (lobia) beans in tomato gravy

Ingredients

• 2 cups dry black eyes beans
• 3 medium ripe tomatoes
• 1.5 teaspoons salt
• 1.5 teaspoons turmeric
• ½ teaspoon cumin powder
• ½ teaspoon coriander powder
• 1.5 teaspoons chilli powder
• 2 tablespoon sunflower or olive oil
• 1 teaspoon garlic paste
• 1 tablespoon tomato puree
• ½ teaspoon mustard seeds

For Garnish:

• 1 tablespoon freshly chopped coriander
• 4 lemon wedges
• Few slices red onion
• 2 green chillies cut into slits.