In pan heat oil, put nigella, fennel seeds, and cook until it crackles. Add papaya and stir well.
Pour water and cover the pan with lid until papaya is cooked, add sugar, salt, lemon juice and reduce further.Remove it from heat and keep it aside.
For Beetroot chutney
Heat oil in a pan, put cumin, cinnamon, dal and fry until golden. Then add ginger, red chili, green chili, beetroot, and salt, cook further until slightly tender.
Put it in a food processor, blend them well, pour it in a bowl ,add lemon juice an adjust seasoning.
For kebab
Put green gram and millet in food processor and make course mince, transfer it in a bowl, add ginger, green chili, coriander, garam masala, kasurimethi, yellow chili powder and salt. Mixwell, check seasoning.
Divide the mixture into 5-6 equal part and make balls. Press each ball between your palm to give a shape of medallion (tikki). Coat each tikki with chia seeds and keep aside.
Cooking
Heat oil in a non-stick pan, shallow fry the tikkistill golden brown and crisp on both sides, remove it on a kitchen paper.
Serve
To serve, arrange the kebab in a serving platter, accompanied with papaya relish and beetroot chutney.