The fate of Rs 4 lakh-crore investment is hanging in the balance as the state government is yet to rollout the green hydrogen policy that has been languishing at the draft stage for more than six months. Five companies have already registered with Rajasthan Renewable Energy Corporation Ltd (RRECL) to set up 2610 kilo-tonne projects of green hydrogen which will fetch cumulative investments of around 4 lakh-crore.