Heat oil in a pan over medium heat.
Add mustard seeds and let them splutter.
Add cumin seeds and hing, stirring for about 30 seconds.
Add diced carrots and cook for 2-3 minutes until slightly tender.
Add green peas and cook for an additional 2 minutes.
Stir in turmeric powder and mix well.
Add the cooked rice, combining all ingredients evenly.
Pour in lemon juice and add lemon zest for extra flavor.
Season with salt to taste and mix thoroughly.
Garnish with fresh cilantro before serving.