Milk chocolate bar

One serving of Milk chocolate bar — 1 small bar (40 g) — comes to 211 kcal, 3 g protein, 22.8 g carbs and 12 g fat. Scaled to 100 g it works out to 528 kcal and 7.5 g protein, which makes it a moderate protein source for a sweet item. That single serving is about 14.1% of a 1,500 kcal day and 10.6% of a 2,000 kcal day, so it's more of a filler than a target-hitter on protein without much extra planning.

Walking off Milk chocolate bar takes roughly 5,275 steps, using the rough approximation of 0.04 kcal burned per step (a population-average estimate for a moderate walking pace, not a personalised number). At ₹40 a serving it costs about ₹266.7 for every 20 g of protein it delivers, which is a mid-to-high price for protein compared with dal, eggs or soya chunks. It fits nearly every Indian diet type, including vegetarian, Jain, eggetarian. It's typically eaten at the evening snack slot. It's a packaged/processed item, worth checking the label against this estimate.

If you want variety without changing the macros much, the closest swaps in the sweet category are Besan ladoo, Gulab jamun (with syrup), Honey, Ice cream (vanilla), scoop — each keeps a similar role on the plate while shifting the exact protein-to-carb balance a little.