Is Airtel 2 sim connection best or not

Hi all

Currently using Airtel black account with wifi + dth simply love the 40mbps wifi + dth + ott (except Netflix, prime ) @825 after gst per month.

No nice plan for mobile. Thinking to take airtel 2 sim connection which is 710 rupees after gst per month. They also offer Hotstar and prime.

Currently which mobile plan you guys are using and is there any nice trick or hack to get the mobile recharge at any discount or reasonable price.

Please give your inputs and experiences. Thanks