I tried to connect the internet on my Samsung Galaxy Tab 3 using Tata DoCoMo sim but it doesn't work, did I miss something?

[AC Question]

Tried to connect internet in Samsung galaxy tab 3 using Tata DoCoMo sim. But i doesn’t work

Tried to connect internet in Samsung galaxy tab 3 using Tata DoCoMo sim. But i doesn’t work

but it is showing as connected. but i cant download anything from play store . More over the web page itself not getting loaded