MUMBAI : Tata Sons Chairman N Chandrasekaran on Thursday said group companies have collectively extended a help of ₹2,500 crore towards COVID-19 relief across both the waves of the pandemic that started in March 2020.Speaking at the Annual General Meeting of its cash cow TCS, Chandrasekaran said more than the financial commitments, the work done on the ground by the Tata group companies, like helping build new hospitals and expanding oxygen capacity, has been the focus area.He said the group's holding company Tata Sons and the string of philanthropic trusts which majority own the company had committed ₹1,500 crore after the first wave of the pandemic.Later, as the pandemic continued in the country, group companies including larger ones like.