Edtech company PhysicsWallah’s consolidated net profit more than doubled to Rs 143.63 crore in the September quarter from Rs 69.71 crore a year earlier, driven by growth in its online coaching business and improved cost efficiency.Revenue from operations rose 18% to Rs 1,242.26 crore from Rs 1,051.24 crore, the Noida-based company said on Wednesday. Sequentially, it swung to profit from a loss of Rs 88.28 crore in the June quarter, while