Fresh orange / mosambi juice

One serving of Fresh orange / mosambi juice — 1 glass (250 ml) — comes to 97 kcal, 1.5 g protein, 22 g carbs and 0.3 g fat. Scaled to 100 g it works out to 39 kcal and 0.6 g protein, which makes it not a meaningful protein source on its own for a beverage item. That single serving is about 6.5% of a 1,500 kcal day and 4.9% 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 Fresh orange / mosambi juice takes roughly 2,425 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 ₹533.3 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 and the evening snack slot. It's commonly eaten on fasting days (Navratri/Ekadashi-style).

If you want variety without changing the macros much, the closest swaps in the beverage category are Black coffee (no sugar), Tender coconut water, Cold drink (cola/soda, regular), Diet / zero-sugar cola — each keeps a similar role on the plate while shifting the exact protein-to-carb balance a little.