Plain dosa

One serving of Plain dosa — 1 medium dosa — comes to 147 kcal, 3.5 g protein, 22 g carbs and 5 g fat. Scaled to 100 g it works out to 184 kcal and 4.4 g protein, which makes it not a meaningful protein source on its own for a grain & staple item. That single serving is about 9.8% of a 1,500 kcal day and 7.4% 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 Plain dosa takes roughly 3,675 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 ₹10 a serving it costs about ₹57.1 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, vegan. It works at breakfast, the evening snack slot and dinner. It's a daily staple in most Indian kitchens.

If you want variety without changing the macros much, the closest swaps in the grain & staple category are Appam, Bajra roti (pearl millet), Brown / whole wheat bread, White bread — each keeps a similar role on the plate while shifting the exact protein-to-carb balance a little.