You mean the Indian PM accepted the adoption of the blockchain technology -- not Bitcoin itself, which is just one of its many possible applications. It looks like a lot of the replies are confused about this fact too.
They said, cryptocurrencies are not legal tender.. you can't go and buy mango with cryptocurrencies. You can trade them, store as an asset.
So like Indonesia, basically? It's going to hurt Bitcoin's future as a currency, but I suppose we're a long way off from that anyway so there's plenty of time for them to reconsider their stance. It's much better than a ban, at least.