As I mentioned, unless you have a bright room, A2 is still great. Apparently A2 55" is available in certain pincodes in North India.
My monitor, Asus TUF VG27AQL1A has a peak brightness of 300+ nits for SDR & minimum brightness of 76 nits acc. to rtings.com. I mostly use my monitor at 10% brightness level, sometimes keep it at 30% at day time if I am watching some movie or in dark games like Dying Light 2. My room is relatively darker than normal. Even on 250nit monitors I have never used 100% brightness in general. My parent's new house has very bright rooms, there I use 250nit monitors at 100% brightness as sun hits the screen directly in the afternoon but I lower it significantly at other times. So for non bright rooms, I don't think 120nits as 100% sustained HDR brightness will be an issue, nor will 160nits for SDR.
Anyways, your call.