This is what my UPS guy recommended. Is inverter more efficient than a UPS ? He recommended "luminous inverter". One of the positive thing he recommended was fast charging, say you have no power for a day and you get 1 hour power, then inverter will charge quickly, you will be able to get 1 hour backup, if UPS, it take much more time to charge. When i said this to someone who is not that tech, said UPS company like APC knows what is best to charge than local inverter company, they follow best practices.
I am almost sold to "Asus Vivobook X507" laptop.
EDIT: Just called PayTM support, even if i use third party address for them to ship, they don't give me invoice. They will invoice to third party addressonly. I need invoice on my address for tax purpose. Look like paytm is not an option.
Any recommendation from Amazon ?