I am staying in North, Shyambazar area. Meghbala broadband is not available in my area. The local cable provides TV channels from North Satellite Link, I think their office is located somewhere in Northern Avenue. If you stay in Kolkata, you will know these places. BTW, I dont take service from local cable, use Tata Sky (only their fire TV stick for movies) and sports pack for sports. Other channels are junk except few news channels.
The alliance preferred+ and prime+ plans look to be way better provided there is no/minimal downtime.
I stay in Baguiati area,nearer to Kolkata Airport(Netaji Subhas Bose International Airport).
In our Area, ALLIANCE BROADBAND, MEGHBELA BROADBAND,CITI CABLE BROADBAND,BSNL BROADBAND are available. JiO will take some more months to enter our neighbourhood and area.But they are coming for sure.
Go for Alliance if you have their presence on your area.
As for downtime,it is maximum 1 day,but mostly takes a few couple or quadruple hrs. to rectify local fault...
Your choice your wish your call,bro.