You will be able to take any plan with only router. But you are the looser in that case. They will not provide any discount for not using OTT apps.I'm talking about the security deposit. I guess you should have paid 2500 (1500+1000) as security deposit and got router and stb.
I paid only 1500 as security deposit and will be getting just a router and not stb as I've opted for 699 plan. If I upgrade later to any plan from 999 and above, will they be asking 1000 extra as security deposit for stb or can I continue without STB in 999 Plan as per its plan speed with out stb and OTT. Hope I'm clear.
If you are only interested in broadband, 100 mbps, 3300 GB per month is more than sufficient IMO. (That's the ₹699 plan).
They won't ask ₹1,000 extra if you upgrade to higher plans.