Anushilan Samiti
By 1902, Calcutta had three secret societies working toward the violent overthrow of British rule in India. One was founded by Calcutta student Satish Chandra Basu with the patronage of Calcutta barrister Pramatha Mitra, another was led by Bengali woman Sarala Devi and the third was founded by Aurobindo Ghosh. Ghosh was one of the strongest proponents of militant Indian nationalism at the time. By 1905 the work of Aurobindo and his brother, Barin, enabled Anushilan Samity to spread throughout Bengal. Nationalist writings and publications by Aurobindo and Barin, including "Bande Mataram" and "Jugantar", had a widespread influence on Bengal youth. The 1905 partition of Bengal stimulated radical nationalist sentiments in Bengal's Bhadralok community, helping Anushilan acquire a support base of educated, politically-conscious and disaffected members of local youth societies. Its program emphasized physical training, training its recruits with daggers and "lathis" (bamboo staffs used as weapons). The Dhaka branch of Anushilan was led by Pulin Behari Das, and branches spread throughout East Bengal and Assam. More than 500 branches were opened in eastern Bengal and Assam, linked by "close and detailed organization" to Pulin's headquarters at Dhaka. It absorbed smaller groups in the province, soon overshadowing its parent organisation in Calcutta. Branches of Dhaka Anushilan emerged in Jessore, Khulna, Faridpur, Rajnagar, Rajendrapur, Mohanpur, Barvali and Bakarganj. Estimates of Dhaka Anushilan Samiti's reach indicate a membership of 15,000 to 20,000. Within two years, Dhaka Anushilan devolved its aims from the Swadeshi to that of political terrorism.
Nana Dharmadhikari
He founded Shree Samarth Prasadik Aadhyatmic Seva Samiti and spent his life spreading the philosophy of the saint Samarth Ramdas, writer of the devotional books "Dasbodh", "Manache Shlok", and "Atmaram". Dharmadhikari had millions of followers across the world. He was also awarded by many government and social organisations for his work. In 2008, the Government of Maharashtra conferred upon him the award of Maharashtra Bhushan.
Dr. Nanasaheb Dharmadhikari were born to a family having original surname as Shandilya, in their lineage.
Nearly 350 years ago, there ancestors were reawarded for their social reforming work with new title named Dharmadhikari(Authority of Dharma); by then navy chief Sarkhel Kanhoji Angre.
Dr Nanasaheb Dharmadhikari got their inspiration from a scripture named Shrimat Daasbodh(or just Daasbodh), which they studied since childhood.
After several years, they started an uncommon social reform service on 8 October 1943, on the event of Vijayadashmi of Dassehra.
In this social reform service they started giving spiritual or inspirational speeching (often called Nirupan) on all lessons of Daasbodh weekly, one by one 
Initially there were only five people's attending to hear speech, but as years passed on, more and more people's join in, making a vast family of 10's of millions.
Today, such service (also called Parmartha) is present in multiple Nations such as UAE, London, Singapore, Australia, Nigeria and so on.
At the Initial stage, Dr Nanasaheb had to walk longer distances, some as long as 70 km so as to reach spot where speech on Daasbodh is to be provided, they were providing speech to people's attended, whether one or thousand.
They were always helpful in solving people's issues through correct guidance, resolving superstitious thoughts, only through speech.
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