Dalal Street is on a four-day winning streak, with Sensex surging over 250 points to 77,050 and Nifty climbing above 24,050 — the rally powered by crude oil's capitulation. Brent crude plunged 4.4% to $79.53, now down a staggering 16% from its peak just five days ago following the Iran-US peace deal framework. That oil windfall is spreading cheer across the board: the Consumer Durables index jumped 2%, while IT stocks led bluechip gains with **HCLTech, Tech...