as u said that voda india supports RCS Universal Profile but Jio does not. Now, u also explained what Rcs Universal Profile is, and that any person having Rcs Universal Profile can access it. But as u said Jio does not support it, then according to your own word a RCS sent from Voda won't be accessible from Jio and vice versa is also true. then what is the use of having Rcs Universal ..... if there is no other network than itself in India to receive it.
That's True. But Google working with Jibe and Samsung to bypaas that problem. So everyone can use Universal Profile. Like in USA T-Mobile had advance features same as Jio in India but now they are using Universal Profile. We can hope that Jio implement Rcs Universal profile soon or we have to wait untill Google release it by their own like they already did in Many European countries.