Clean mushrooms wash and wipe then cut in to medium thick long pieces
De-seed and chop green chili,chop the spring onion bulbs(keep the greens for garnishing)
Clean and cut onion and capsicum in to medium size cubes
In a bowl add all ingredients for making the batter except oil and make a thick batter.
Mix 3/4 tablespoon con flour in 1/2 cup water and keep aside.
Heat oil in a kadayi,dip mushroom in to the batter and deep fry until golden color
Transfer the fried mushroom in to a paper towel and keep aside
Heat oil in a non stick wok add the chopped garlic and saute in a high flame,add ginger,celery and spring onion bulb and saute well.
Then add onion and capsicum and green chili saute well,onion and capsicum should retain its crispiness.
now add all the sauces ,white pepper and sugar and saute well in a medium flame
now add the conflour mixture and reduce the flame and saute well till the saucen become thick
now add the fried mushrooms and mix well ,then toss in a high flame so that the batter will finely coat the mushrooms.Switch off the stove and transfer to serving plate.