India's biggest takeaway from the second Test apart from the series-equalling win was the ability of debutants Shubman Gill (45 and 32 not out) and Mohammed Siraj (2/40 and 3/37) to step in and perform with self-assurance. Although they didn't get the big numbers, the two did enough damage to Australia and helped India win.
Before the start of the second Test, India were facing a conundrum at the top of the order. With Rohit Sharma in quarantine after arriving in Australia late due to his rehab at the National Cricket Academy in Bengaluru, and Prithvi Shaw failing in both innings of the first Test, India had to throw in young Gill at the deep end. And though the opener survived some tense moments, he did not budge from playing his shots.