Marinate Chicken: In a bowl, add chicken, salt, light soy sauce, green chili sauce, and ginger garlic paste. Mix well and keep aside to marinate for a while.
Cook Chicken: Heat 2 tbsp oil in a pan. Add marinated chicken and sear for 12-15 minutes until tender. Transfer to a chopping board and shred finely.
Prepare Pickled Vegetables: In a bowl, mix shredded cabbage, julienned carrots, salt, vinegar, and sugar. Let sit until vegetables lose moisture. Squeeze excess moisture using a muslin cloth and set aside.
Make Batter and Spring Roll Sheets: In a bowl, combine refined flour, cornstarch, salt, whole egg, ½ cup water, and 1 tsp oil. Mix to a smooth batter and let rest. Add remaining ½ cup water and ½ tsp oil, mix well. Heat a pan on low flame, pour a ladle of batter, spread evenly, and cook for 2-3 minutes. Remove and trim edges to form spring roll sheets.
Prepare Stuffing: In a bowl, mix pickled vegetables, shredded cooked chicken, chopped coriander leaves, and julienned ginger.
Prepare Slurry: Mix prepared batter with ⅓ cup cornstarch and salt to taste. Set aside.
Assemble Spring Rolls: Place stuffing in the center of a spring roll sheet. Apply slurry on edges and seal. Roll tightly to desired shape.
Fry Spring Rolls: Coat the assembled spring rolls with batter. Heat oil to medium heat and deep fry the rolls until crispy and golden brown. Drain on paper towels.
Prepare Garlic Dipping Sauce: Heat 1 ½ tbsp oil in a pan. Add vinegar and sliced garlic, sauté until golden (2-3 minutes). Add red chili sauce, remaining chicken sauce, chopped coriander stems, and cook for 1 minute on high flame. Transfer to serving bowl.
Serve: Serve hot chicken spring rolls garnished with coriander sprig alongside the garlic dipping sauce.