Guru Purnima or Poornima is a festival celebrated throughout India in honor of one’s Guru or Master–a guide, a mentor who offers the path that leads to success both material and spiritual.
The day is the full-moon day or night to be exactly because the main ritualistic part is done during the night of this auspicious day. The internet and the social media are used for wishing each other on this particular day and various expressions are used.
If you are looking to know how to say Happy Guru Purnima in Sanskrit, here is the phrase that can be used.
Apart from the above expression, the last part of the phrase could be used like the below two examples too:
Both of the above phrases also convey the same meaning and feeling.