yup everyone can't differentiate may be😊English doesn't have a letter for ख़ which comes from the Arabic خ
So I can't write it. But its Khushboo (as sung by Udit Narayan) vs Khushboo (as sung by Jagjit Singh) in the 2 videos linked in this thread.
You may not notice the difference because you may not differentiate between ख and ख़ and that's perfectly alright! 😊
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