Sensex zooms over 4,000 points in Diwali month: Is this the beginning of new bull run?

Dalal Street is experiencing a strong rebound, with the Sensex surging 5% in October driven by a significant return of foreign institutional investors. This rally, nearing all-time highs, has market veterans questioning if it signals a new bull cycle or a temporary festive surge, with earnings growth being a key determinant.