Put brown poha in a colander and wash twice. Leave brown poha in a colander to drain out completely.
Heat oil in a nonstick pan. Add mustard seeds, fennel seeds, onions and cook until onions are translucent.
Now add turmeric, salt, pav bhaji masala, chopped green chilies. Cook for 5 minutes on high flame.
Now lower the flame and add soaked brown poha. Mix it well and cook for another 3 minutes. Switch off the flame and add lemon juice.