Doubt: TDS vs Advance Tax

Yaar samajh nahi aaya, main dono ke beech confusion mein hoon. TDS aur Advance Tax dono hi tax payments hain, lekin unki filing aur exemption rules bahut different hain. TDS se pataa lagtaa hai tax already paid hai, jisse employer ko return filing karna padtaa hai. Lekin Advance Tax paid karna chaahiye hai kab aur kaise?

Main sochtaa hoon, agar Advance Tax mein lagbhag 50% tax paid hai, toh usse TDS se koi exemption nahi milti. Ya phir, agar TDS paid kiyaa hai aur usse tax refund mila, toh us refund mein se koi Advance Tax ki exemption hai ya nahi?

Kisi ke pass koi examples ya cases hai jo ye samjhaayein?