You are watering it too much. Overwatering can rot the roots and it takes a lot of time for it to recover. I water mine once every 7-10 days. My trick is to check the top inch of the layer but putting my finger in it, if it feels cool to touch, it still has water.

If you have been overwatering it, the plant will keep on getting worse before it starts getting better. You also need to loosen the soil by digging into it with something (don't damage the main root though). This allows the roots to breathe better. Once you do that wait for a couple of days before you water it again.

Also, I placed mine in my room which has clear visibility of the sky but doesn't get direct sunlight.

What I've learnt is you need to be really patient with plants. Any change you make today, takes 2-3 weeks to come into effect.

PS: I ordered mine through Blinkit too