Drain thoroughly and slice herring into bite-size pieces.Set a sauté pan over medium heat and when hot, pour in 2 tbsp olive oil.Set them aside and fry the courgettes in another tbsp oil for 5 mins, until golden on both sides.Cook the onion in the pan for 5 mins.Return the vegetables to the pan with some salt and pepper and cook for 5 mins.Deep fry the sliced onions when it is hot.Meanwhile, take a big wide pan, add oil in medium heat, add the sliced onions, add the blended paste, to it add the green chillies, ginger garlic paste and garlic and fry for a minute.Now after returning the skillet back to the stove, add the washed lamb and salt and ½ cup water and mix well.Add the drained hot rice on the top of it.If it is spicy in the end, squeeze some lemon, it will reduce the heat and enhance the flavors also.Cashew nuts – 12Khus khus – ½ tbspCumin seeds – ½ tbspOnions – 3 sliced thinlyGinger garlic paste – 2 tspGarlic – 4 wholeMint – LeavesCilantro – LeavesSaffron – ½ tsp dissolved in ½ cup warm milkGhee – 2 tbspBasmati rice – 2 CupsFull fat yogurt – ½ cupCumin Seeds – 1 tbspBay leaf – ½Cinnamon – 1 thin pieceCloves – 3Cardamom – 2Lamb – 1 lbRed Chilli powder – 1 tspBiryani masala – 1 tbsp