Formal:
* आशा है आप स्वस्थ होंगे (aasha hai aap swasth honge): This is a very formal way to say it, literally meaning "Hope you are healthy."
* आशा है आप अच्छे से हैं (aasha hai aap acche se hain): This is slightly less formal, meaning "Hope you are well."
Informal:
* आशा है आप ठीक होंगे (aasha hai aap thik honge): This is a more casual way to say it, meaning "Hope you are okay."
* मुझे आशा है आप अच्छे हैं (mujhe aasha hai aap acche hain): This is another informal option, meaning "I hope you are good."
More personal:
* कैसे हैं आप? (kaise hain aap?): This is a simple and direct way to ask "How are you?"
You can choose the phrase that best fits the situation and your relationship with the person you're speaking to.