Good ergonomic chairs in Mumbai

I want to buy an ergonomic chair with good back support for my WFH setup. Everyone I ask suggests me to go to a store and try. But apparently most of the stores don't keep chairs in display. I have been to showrooms of sellers like Sleepwell, Pepperfry, Wakefit, Godrej interio... None of them had any chairs on display. Wakefit had one random chair. That's it. I also visited local shops as well. Most of them don't sell the ergonomic chairs with back support. And those who did, didn't have good quality ones. They were already squeaky and not comfortable. Is buying online without trying the only option? My budget is around 17k. Please help me if anyone knows any store.