Iskcon Ujjain celebrating Guru Purnima by worshing Sandipani Muni “Spiritual Master of Krsna and Balaram”.

Guru Purnima is a vedic festival when Guru is worshiped and glorified.

sākṣād-dharitvena samasta-śāstrair uktas tathā bhāvyata eva sadbhiḥ kintu prabhor yaḥ priya eva tasya vande guroḥ śrī-caraṇāravindam

According to the Vaiṣṇava philosophy, a devotee is as good as Nārāyaṇa not by becoming Nārāyaṇa but by becoming the most confidential servant of Nārāyaṇa. Such great personalities act as spiritual masters for the benefit of the people in general, and as such, a spiritual master who is preaching the glories of Nārāyaṇa should be accepted as Nārāyaṇa and be given all respects due Him. 

Ujjain a secred place where Krsna Balaram studied, under Sandipani Muni 5000 year back is prominent place in central India. Being in such holy place of Ujjain, Iskcon devotees celebrated Guru Purnima by  worshing Sandipani Muni in noon, because of Lunar eclipse in evening. All devotees attended Arti and sang Guruastakam followed by Hare Krsna mahamantra.