Ubiquiti does prosumer to carrier grade systems. And they now
sell direct in India.
Choose the
appropriate saucer(s) and quantity depending on your coverage needs. Add a
Dream Machine (as your router, firewall, VPN, security gateway, NAS). Add a switch if you need more Ethernet ports.
I've been using an earlier version of the system since a decade. No maintenance after initial setup, no wifi deadspots with some careful planning of where to mount, rock solid throughput for me and family through 2 years of simultaneous Netflix, online-school, online video calls w/o quality drops. ~30 devices constantly connected over ethernet and wifi daily.
If you decide to upgrade your ISP to 1 GBPS, just make sure you have a Cat6 cabling connecting their modem to the Dream Machine. Internal network speed can easily sustain 1Gbps with Cat6 cabling.
And if you're balking at cost and you work from home, here is my excuse - I work from home, so my internet is my most important investment. I even subscribe for two ISP connections to allow for failover. I don't consider it overkill. If people spend 2-10x their monthly salary* on cars, I don't understand the fuss about a one-time spending of 0.2-0.5x on their most critical infrastructure for working from home. 😄
*I'm assuming 2 lakhs/month as a median salary here.
p.s. If you have friends coming from the US, you can get them a bit cheaper, but then you'll lose GST and depreciation benefits if those apply to you.