Situated at the core of Davis Square, Diva Indian Bistro brims with the aromas of a menu that borrows from the culinary traditions of regions from Bangalore to Bombay. Beneath a bubbly goldenrod ceiling that looks like a collection of soft-lit skylights, patrons settle onto plump black benches to munch samosas and peruse offerings of lamb, seafood, beef, and tandoori dishes soaked in the warmth of the traditional clay oven. Saffron- and cardamom-scented basmati rice stars in biryani dishes, and dosas, a type of crepe crafted from rice and lentils, enclose chicken or veggie fillings alongside coconut chutney and lentil soup. The wall behind Diva’s bar mimics the ceiling’s rectangular bubble pattern in white, with a long row of blue glass bottles bisecting the surface. High black and chrome chairs slide up to the brushed-silver bar, where patrons murmur over cocktails and ice clicks occasionally like a tap dancer having a nice dream.