Param Pujya Gurudev Dr. Narayan Dutt Shrimali​​  was a profound spiritual Guru of 20th century. He reinstated the lost spiritual science, which was a true cultural heritage of India once and brought the concealed subjects such as Mantra, Tantra, PalmistryJyotish, Ayurveda, Hypnotism, Kriya Yoga, Solar Science, Alchemy to the easy reach of common people. Throughout the life he rebelled against the  wrong practices prevailing in these sectors and worked with much integrity to remove the misconceptions of Mantra & Tantra  from people’s mind. He introduced  the significance of Tantra  in beautification of one’s life and in shaping  a healthy, constructive society.
Gurudev  reestablished the Guru-Shishya tradition  functioning in the pace of modern life and helped millions of people to overcome the complex problems through his spiritual knowledge and power. Today the major progress, which the Indian society is able to observe in the field of Mantra, Tantra, Jyotish, Palmistry, Karmakand, Yog, Ayurveda – so much is owed to him. His married took place in a very early age with Bhagwati Devi and when he was 12, he took an arduous path to gain the knowledge of ancient Indian science, living an ascetic life in the  Himalayas for 2 decades .
In ascetic form Gurudev was known as Paramhansa Swami Nikhileshwaranand, a yogi who reached great heights in mantra & tantra sadhana in a short span of time thus acquiring spiritual leadership among the Himalayan yogis. The courage, determination, endurance & strength, which he showed in the quest of ancient Indian knowledge was tremendous. The love & devotion, which he expressed towards all of his Gurus symbolised the most ideal slokas of Sishyopanishad. Such exhibited qualities ultimately made him one of the best disciples of Paramhansa Swami Sachidananda.
Gurudev  didn’t reveal much about his ascetic life. Most of the facts are sourced from the Himalayan yogis. His main focus always remained on spreading the knowledge of ancient Indian science in the society by maintaining a low profile. Every moment of his life was dedicated to help common mankind by revealing the essence of Mantra & Tantra  through private consultation, books, audios, videos and more often through sadhana camps. He enlightened  many people in India and abroad through a practical experimentation of Mantra & Tantra  in various shivirs. He helped sadhaks of all age groups to advance  in the field of sadhana while performing daily household rituals. 
As the 20th century got closer to the end, the soul of such a great spiritual master abandoned the world unnoticeably. Today Dr. Narayan Dutt Shrimali remains  in every disciples’ heart as Param Pujya Gurudev or Shadgurudev and his mantras still resonate in their abodes. His Grihasti sishyas are advancing in the path of Sadhana and constantly working on to raise the spiritual consciousness  under the umbrella of Siddhashram Sadhak Parivar.
Gurudev Dr.Sri Anil Kumar Joshi ji is a beloved disciple of Sri Nikhileswarananda Swami ji who is a Siddha of DasaMahavidyas and has been spreading the teachings of Parama Pujya Gurudev.

Dr. Sri Anil Kumar Joshi Guruji has setup an ashram Nikhil Chetana Kendram, providing a platform for every Sadhaka to perform their Sadhanas, staying at the Ashram for as much time as they want for free of any cost. Ashram has been running since 1996.

Guruji has been conducting Homas on every Amavasya for everyone’s benefit. One can go and participate in such a havan and seek relief from their issues.

Guruji continuously providing guidance for Mantra Japa and performing Homa/ Havan by Sadhakas themselves to get a relief from their issues.

Guruji says that one should get relieved from problems through Sadhana marg.