EV Batteries: Indigenization won’t help the country at this stage as the manufacturing scalability is not fully achieved. For India to gain efficiency in terms of scale and the supply chain will take some more time. “We have to go beyond the threshold level to see the benefits of localization. I don t think localization by itself is going to benefit, unless we get to that kind of threshold scale, Vijayanand Samudrala, President, Amara Raja, said.