First of all wash the mushroom properly and dry it.
Cut the mushroom into 2 pieces.
Take a bowl add cornflour, rice flour, salt add sufficient water make a smooth thick batter.
Add mushroom into the batter and ensure its well coated .place each mushroom into the heat oil ,reduce flame to medium high and deep fry till golden brown.
Remove the fried mushroom on to tissue paoer and set aside.
Take a wok.
Add oil, chopped garlic ,saute until it becomes light brown.
Add onion, capsicum, green chillies, spring onion, baby corn in it.
Mix properly.
Add salt, black pepper, red chilli powder and mix well.
Take a 1 glass of water ,add 2-3 cornflour, tomato sauce, soya sauce, chilli sauce, vinegar, ajino matto in it and mix well.
Mix the cornflour water in the vegetables at low flame .
When gravy becomes thick add mushroom and stir it for 5 min.