Many reasons may be of wt loss so at first find out reason of wt loss so check ur
TSH level,
Start ur day with exercise and walk which increase ur metabolism.
Don't skip ur breakfast which increase ur appetite.
Take high calorie & rich protein In ur diet like egg, fish, milk and milk products like cheese, paneer, curd, buttermilk,almonds, nuts,
Add good fat and nuts in ur diet.
Take food as multinational form like instead of. Milk take as shake form banana almond shake etc., mix nut Chikki.
Next Steps
Contact me for customized diet plan through practo direct consultation surely will help you.