Many Many Happy Returns of the Day Meaning in Hindi

Why do we say 'returns'? It does not mean returning a gift. In English, a 'return' means a recurrence or coming back. By sending this massive, beautiful wish, you are literally praying to God that this specific happy day (their birthday) successfully 'returns' to their life dozens of times. You are essentially wishing them a very long, healthy life so they can celebrate 100 more birthdays.

Depending on how formal you want to be, you can use these exact Hindi phrases:

1. Formal/Respectful: जन्मदिन की हार्दिक शुभकामनाएँ! ईश्वर करे यह ख़ुशी का दिन आपके जीवन में बार-बार आए।
2. Short & Sweet: आपको जन्मदिन की बहुत-बहुत बधाई!
3. Blessing from Elders: जुग-जुग जियो, यह दिन तुम्हारी ज़िंदगी में सौ बार आए!

If someone sends you this massive wish, do not just reply with a boring 'Thanks'.

• In English: "Thank you so much for your warm wishes!"
• In Hindi: "आपकी इन प्यारी शुभकामनाओं के लिए दिल से बहुत-बहुत धन्यवाद!"