The Spring Roll on Indian urban menus is the Indo-Chinese version: a crisp wrapper around a vegetable or chicken filling, sold from the same carts and small kitchens that turn out Hakka noodles and Manchurian. It is filed here as a roll-format snack, and it earns the place because it is eaten in hand, dipped and bitten, rather than plated with cutlery. The angle that separates it from its East Asian cousins is the seasoning: the filling is shot through with soy, vinegar, green chilli, and garlic in the Indo-Chinese register, hotter and tangier than a plain stir-fry, and the wrapper is fried to a hard, shattering crunch rather than left soft.
The build is a filling and a fold, and both have failure modes. The filling is a fast, high-heat toss of shredded cabbage, carrot, capsicum, and spring onion, sometimes with shredded chicken, hit with soy sauce, vinegar, chilli, and garlic, then cooked just until it loses its raw stiffness but keeps a crunch and, critically, cooled and drained before it goes anywhere near a wrapper. Hot or wet filling steams the wrapper from inside and guarantees a soggy, split roll. The cooled filling is spooned onto a thin sheet, often a maida-based wrapper, folded into a tight cylinder with the seam sealed by a flour-and-water paste, then deep-fried until uniformly deep gold. Good execution is a wrapper that audibly cracks and stays crisp minutes later, a filling that is still distinct and lightly crunchy, and a clean, non-greasy bite. Sloppy execution shows up as a pale or oil-logged wrapper, a mushy overcooked filling, or rolls that burst in the fryer because the seam was not sealed or the rolls were over-packed.
Variation runs along the filling and the dip. Vegetable is the default; chicken and occasionally paneer versions exist, and some carts push the heat with extra green chilli or a Schezwan-style smear inside. The accompaniment is usually a red garlic-chilli or Schezwan sauce, sometimes a sweet-and-sour dip, eaten as a starter or a between-meals snack. The wider Indo-Chinese street tradition that produced it is its own large topic and deserves its own article rather than being crowded in here.