Tata Docomo is one of the my favourite network before reliance jio.
I started using tata docomo when it launched in india market as a scheme of 1paisa per 1 second.
That time it was cheaper than all other mobile operater network.
Till now no one has beat tata docomo on any pack as internet pack or topup pack or rate cutter pack.
Its been cheapest mobile network operator till now.
Now it get beaten by relaince jio but I think so it will overtake jio network in some period of time.
So best network of all the time