Formation of Bihar 1912 and the Separation of Jharkhand
Notes on Bihar's formation: separation from Bengal in 1912, Orissa in 1936, and the Bihar Reorganisation Act that created Jharkhand in 2000.
By GK24 Editorial Team· Published · 3 min read

Modern Bihar was shaped by three separations. It was cut away from the Bengal Presidency in 1912, lost Orissa in 1936, and lost its southern plateau to Jharkhand in 2000. BPSC, BSSC and Bihar Police papers return to this chapter every year, because each step has a clean date, a named law and a set of leaders attached to it.
Bihar inside the Bengal Presidency
After the grant of the Diwani of Bengal, Bihar and Orissa to the East India Company in 1765, Bihar was governed as part of Bengal for nearly a century and a half. Educated Biharis complained that revenue raised in Bihar was spent in Calcutta, that Bengali was the language of the courts and offices, and that Bihari candidates were passed over for government jobs. The demand for a separate province was carried by newspapers and associations: the Hindi weekly Bihar Bandhu, started by Keshav Ram Bhatt, the English weekly The Beharee of Mahesh Narayan, and the Bihari Students Conference founded in 1906. The leading voice was Sachchidananda Sinha, whose pamphlet of 1906, The Partition of Bengal or the Separation of Bihar, put the case in print; he is called the architect of the separate Bihar movement. Ali Imam, Hasan Imam, Mazharul Haque and Rajendra Prasad worked with him.
1912: the Province of Bihar and Orissa
At the Delhi Durbar of December 1911, George V announced the annulment of the partition of Bengal, the transfer of the capital from Calcutta to Delhi, and the creation of a new province. The Province of Bihar and Orissa came into being on 22 March 1912, with Patna as its capital and Sir Charles Stuart Bayley as its first Lieutenant Governor. That date is observed every year as Bihar Diwas. Under the Government of India Act, 1935, the province was divided again and Orissa became a separate province on 1 April 1936, leaving Bihar on its own. After independence, Shri Krishna Sinha, known as Shri Babu, became the first Chief Minister with Anugrah Narayan Sinha as his deputy, and Jairamdas Daulatram was the first Governor. In the reorganisation of 1956 Bihar transferred parts of the Purnea and Manbhum areas, including Purulia, to West Bengal.
The Jharkhand movement
The tribal belt of the Chhotanagpur and Santhal Parganas plateau had asked for a separate home since colonial times. The Chhotanagpur Unnati Samaj of 1915 and the Adivasi Mahasabha of 1938, led by Jaipal Singh Munda, were its early platforms; Jaipal Singh, who had captained India's gold-winning hockey team at the 1928 Olympics, turned the Mahasabha into the Jharkhand Party in 1950 and pressed the demand before the States Reorganisation Commission, which rejected it in 1955. The movement revived with the Jharkhand Mukti Morcha, formed in 1972 by Binod Bihari Mahto, Shibu Soren and A. K. Roy, and the Jharkhand Area Autonomous Council of 1995 was an interim answer.
2000: the Bihar Reorganisation Act
Parliament passed the Bihar Reorganisation Act, 2000, and Jharkhand was created on 15 November 2000 as the twenty-eighth state of India. The date is the birth anniversary of Birsa Munda. Ranchi became the capital, Babulal Marandi the first Chief Minister and Prabhat Kumar the first Governor, and the new state began with 18 districts taken from Bihar. It was the third state created that year, after Chhattisgarh on 1 November and Uttaranchal on 9 November. Bihar was left with 37 districts, which became 38 when Arwal was carved out in 2001, and its area fell from about 1,73,877 square kilometres to 94,163, Jharkhand taking 79,714. The split cost Bihar nearly all of its mineral wealth and heavy industry, the coal of Dhanbad, the steel of Jamshedpur and Bokaro, and left it an overwhelmingly agrarian state on the Gangetic plain, while Jharkhand inherited the minerals but a smaller revenue base in agriculture.
Dates at a glance
| Date | Event |
|---|---|
| December 1911 | Delhi Durbar announces a separate province |
| 22 March 1912 | Province of Bihar and Orissa created; Bihar Diwas |
| 1 April 1936 | Orissa separated under the Act of 1935 |
| 1950 | Jharkhand Party formed by Jaipal Singh Munda |
| 1972 | Jharkhand Mukti Morcha formed |
| 15 November 2000 | Jharkhand created as the twenty-eighth state |
| 2001 | Arwal created, taking Bihar to 38 districts |
Exam Point of View
BPSC, BSSC and Bihar Police papers test this chapter as date, law and leader. Fix 22 March 1912 with the Province of Bihar and Orissa and Bihar Diwas, 1 April 1936 with Orissa and the Act of 1935, 1950 with the Jharkhand Party and Jaipal Singh Munda, 1972 with the Jharkhand Mukti Morcha, and 15 November 2000 with the Bihar Reorganisation Act, the twenty-eighth state and Birsa Munda's birth anniversary. The usual traps are 1911 given as the year Bihar was formed when it is only the year of the announcement, Rajendra Prasad named as the architect of the separate Bihar movement in place of Sachchidananda Sinha, Jharkhand shown as the twenty-sixth or twenty-seventh state when those are Chhattisgarh and Uttaranchal, and the Jharkhand Party and the Jharkhand Mukti Morcha swapped.
Important Facts
| Separation from Bengal | 22 March 1912; Province of Bihar and Orissa |
|---|---|
| Announcement | Delhi Durbar of December 1911, by George V |
| First capital and head | Patna; Sir Charles Stuart Bayley, Lieutenant Governor |
| Bihar Diwas | 22 March every year |
| Architect of the movement | Sachchidananda Sinha; pamphlet of 1906 |
| Early newspapers | Bihar Bandhu of Keshav Ram Bhatt; The Beharee of Mahesh Narayan |
| Orissa separated | 1 April 1936, under the Government of India Act, 1935 |
| First Chief Minister of Bihar | Shri Krishna Sinha, with Anugrah Narayan Sinha as deputy |
| First Governor of Bihar | Jairamdas Daulatram |
| Early tribal platforms | Chhotanagpur Unnati Samaj 1915; Adivasi Mahasabha 1938 |
| Jharkhand Party | Formed in 1950 by Jaipal Singh Munda |
| Jharkhand Mukti Morcha | Formed in 1972 by Binod Bihari Mahto, Shibu Soren and A. K. Roy |
| Law creating Jharkhand | Bihar Reorganisation Act, 2000 |
| Jharkhand formation day | 15 November 2000; birth anniversary of Birsa Munda |
| Jharkhand firsts | Capital Ranchi; first Chief Minister Babulal Marandi; 18 districts at creation |
| Areas after the split | Bihar 94,163 sq km; Jharkhand 79,714 sq km |
| Districts of Bihar | 37 after the split; 38 after Arwal was created in 2001 |
Practice MCQs on this topic
In which year was Bihar separated from the Bengal Presidency to form a new province?
- A.1905
- B.1912
- C.1936
- D.1947
Show answer
The Province of Bihar and Orissa came into being on 22 March 1912, with Patna as its capital and Sir Charles Stuart Bayley as its first Lieutenant Governor.
Read the full explanation →Bihar Diwas is celebrated every year on which date?
- A.1 April
- B.22 March
- C.15 November
- D.12 December
Show answer
Bihar Diwas marks 22 March 1912, the day the Province of Bihar and Orissa was brought into existence and Bihar stopped being a part of the Bengal Presidency.
Read the full explanation →Who is regarded as the architect of the movement for a separate Bihar province?
- A.Rajendra Prasad
- B.Anugrah Narayan Sinha
- C.Sachchidananda Sinha
- D.Mazharul Haque
Show answer
He argued the case for separation in print, most notably in his 1906 pamphlet on the partition of Bengal and the separation of Bihar, used the press and the Bihari Students Conference to build opinion, and pressed the demand before the colonial government.
Read the full explanation →Orissa was separated from the Province of Bihar and Orissa in which year, and under which law?
- A.1919, under the Government of India Act, 1919
- B.1936, under the Government of India Act, 1935
- C.1947, under the Indian Independence Act
- D.1956, under the States Reorganisation Act
Show answer
The Act of 1935 reorganised several provinces, and on 1 April 1936 Orissa was constituted as a separate province, leaving Bihar on its own.
Read the full explanation →Jharkhand was carved out of Bihar on which date?
- A.1 November 2000
- B.9 November 2000
- C.15 November 2000
- D.22 March 2000
Show answer
Jharkhand came into being on that day under the Bihar Reorganisation Act, 2000, with Ranchi as its capital, Babulal Marandi as first Chief Minister and eighteen districts taken from Bihar.
Read the full explanation →Jharkhand became which numbered state of the Indian Union on its creation?
- A.Twenty-sixth
- B.Twenty-seventh
- C.Twenty-eighth
- D.Twenty-ninth
Show answer
Three states were created in quick succession in 2000: Chhattisgarh on 1 November as the twenty-sixth, Uttaranchal on 9 November as the twenty-seventh, and Jharkhand on 15 November as the twenty-eighth.
Read the full explanation →Jharkhand was created under which Act of Parliament?
- A.Madhya Pradesh Reorganisation Act, 2000
- B.Bihar Reorganisation Act, 2000
- C.States Reorganisation Act, 1956
- D.Uttar Pradesh Reorganisation Act, 2000
Show answer
Parliament passed this law under Article 3 of the Constitution, which lets it form a new state by separating territory from an existing one, and Jharkhand came into being on 15 November 2000.
Read the full explanation →15 November, the foundation day of Jharkhand, is the birth anniversary of which leader?
- A.Sidhu Murmu
- B.Birsa Munda
- C.Tilka Manjhi
- D.Jaipal Singh Munda
Show answer
Birsa Munda led the Ulgulan, the great tumult, among the Munda people of the Chhotanagpur region at the end of the nineteenth century, demanding the restoration of tribal land rights, and he died in Ranchi jail in 1900.
Read the full explanation →The Jharkhand Party, formed in 1950 to press the demand for a separate state, was founded by whom?
- A.Shibu Soren
- B.Binod Bihari Mahto
- C.Jaipal Singh Munda
- D.A. K. Roy
Show answer
He had captained the Indian hockey team that won gold at the 1928 Olympics, led the Adivasi Mahasabha from 1938, and converted it into the Jharkhand Party in 1950 to seek a separate state for the Chhotanagpur and Santhal Parganas region.
Read the full explanation →Who was the first Chief Minister of Bihar after independence?
- A.Anugrah Narayan Sinha
- B.Shri Krishna Sinha
- C.Jairamdas Daulatram
- D.Sachchidananda Sinha
Show answer
Known across the state as Shri Babu, he headed Bihar's government from 1946 and continued as Chief Minister after independence until his death in 1961.
Read the full explanation →Frequently Asked Questions
When was Bihar separated from Bengal and why is Bihar Diwas on 22 March?
The Province of Bihar and Orissa came into being on 22 March 1912, after the Delhi Durbar of December 1911 announced the change. Patna became the capital and Sir Charles Stuart Bayley the first Lieutenant Governor. Bihar Diwas is observed on 22 March every year to mark that day.
Who is called the architect of the separate Bihar movement?
Sachchidananda Sinha. He argued the case in his 1906 pamphlet on the partition of Bengal and the separation of Bihar, worked through the press and the Bihari Students Conference, and later presided over the first sitting of the Constituent Assembly as its provisional chairman in December 1946.
When did Orissa separate from Bihar?
On 1 April 1936, under the Government of India Act, 1935, which divided the Province of Bihar and Orissa. Orissa became a separate province with Cuttack as its early headquarters, and Bihar continued as a province of its own. The day is observed in Odisha as Utkal Divas.
Under which law was Jharkhand created, and when?
Under the Bihar Reorganisation Act, 2000, passed by Parliament. Jharkhand came into being on 15 November 2000, the birth anniversary of Birsa Munda, as the twenty-eighth state of India, with Ranchi as capital, Babulal Marandi as first Chief Minister and 18 districts taken from Bihar.
How did the separation of Jharkhand affect Bihar?
Bihar's area fell from about 1,73,877 square kilometres to 94,163, and it was left with 37 districts, which became 38 when Arwal was created in 2001. Almost all the coal, iron and heavy industry of the Chhotanagpur plateau, including Dhanbad, Jamshedpur and Bokaro, went to Jharkhand, leaving Bihar an agrarian state on the Gangetic plain.
Sources
- Bihar Reorganisation Act, 2000 — India Code, Government of India
- History and profile of the state — Government of Bihar
- Politics in India Since Independence (Class XII), Era of One-Party Dominance and after — NCERT
- About Jharkhand: formation and districts — Government of Jharkhand





