First, Heat oil and splutter mustard seeds, fennel seeds, and urad salt
Add garlic and curry leaves; saute
Add the onion and give a quick mix
Furthermore, add turmeric powder and salt; saute well
Add tomatoes; quick mix
Furthermore, add drumsticks and brinjal; saute for a minute
Add sambar powder; mix well
Furthermore, add water; close and cook till the drumstick and brinjals cook well
Open and cook till the thokku comes together