Add big pinch salt+ big pinch sugar to the methi leaves and let it rest for a few mts. Squeeze excess water from methi and keep aside.
Heat ghee or oil in a vessel, add the cumin seeds and let them splutter. Add grated ginger and asafoetida and saute for 4-5 seconds. Add chopped onions and saute till the onions turn transparent. Add the methi leaves and stir fry for another 4-5 mts on medium heat.
Add the spice pwds (except garam masala pwd) and salt. Combine well. Add the tomatoes and cook until soft.
Add the green peas and saute for a minute. Add a cup of water and cook on high heat for 3-4 mts. Reduce flame, cover with lid and cook on simmer for another 6-7 mts. Next, add the curd and go on stirring till its well combined, approx 5-7 mts or till it reaches required gravy consistency.
Add garam masala pwd and cashewnut paste and combine well. Adjust the salt, garnish with cream and serve hot with rotis/paranthas