Take a wok add oil heat it up and add cumin seeds in it.
Now add garlic,green chilies,capsicum and onions in the wok.
Saute them for 2 to 3 minutes not more than that.
Now add chili garlic sauce and tomato ketchup and mix it well.
Add sugar,turmeric powder and red chili powder.
Stir it for 2 more minutes.
After this add tomatoes and mix them well.
Add salt as per your taste
Now when you will notice that the tomatoes has turned soft add dry mango powder.
Add green coriander leaves and paneer cubes in the masala.
Lastly sprinkle pepper powder and again give a gentle mix.
Your Chili Paneer is ready to enjoy.