From 1775 to 1941 the emergence of Bengal renaissance (from the birth of Raja Ram Mohan Roy to the death of Rabindranath Tagore) was seen, which has an effect in growing Bengali nationalism.
In what is described as the Bengal Renaissance, the introduction of Western culture, science and education led to a major transformation and development of Bengali society.
Bengal became a centre of modern culture, intellectual and scientific activities, politics and education under British Raj.
The Young Bengal, and Jugantar movements and newspapers like Amrita Bazar Patrika led the intellectual development of India.
Seeking a united Bengal and rejecting British hegemony, Bengalis also spearheaded an emerging revolutionary movement, which assumed a central role in the national independence struggle.
[5] These songs were meant to rekindle the unified spirit of Bengal, to raise public consciousness against the communal political divide.
Of these, A. K. Fazlul Huq, Huseyn Shaheed Suhrawardy were involved in communal politics; leading to a separate Muslim state with Pakistan.
To prevent the inclusion of Hindu-majority districts of Punjab and Bengal in a Muslim Pakistan, the Indian National Congress and the Hindu Mahasabha sought the partition of these provinces on communal lines.
[citation needed] Bengali nationalists such as Sarat Chandra Bose, Huseyn Shaheed Suhrawardy, Kiran Shankar Roy, and Abul Hashim sought to counter partition proposals with the demand for a united and independent state of Bengal.
[citation needed] Suhrawardy and Bose sought the formation of a coalition government between Bengali Congress and the Bengal Provincial Muslim League.
With the support of the British governor of the Bengal province, Frederick Burrows,[citation needed] Bengali leaders issued the formal proposal on 20 May.
This party, led by Sheikh Mujibur Rahman played an influential role to create a new nation, Bangladesh ('The land of the Bengalis') in 1971 as a new country.
So, it can be said that due to the language movement, the development of Bengali nationalism was created and helped to add a new country in world map called Bangladesh.
The politician and Government official from East and West wings had inconsistent ideas and objectives and they could not understand properly each other's problems.
Moreover, East Pakistan's earnings enabled West Pakistani merchants and traders to enhance manufacturing and infrastructure facilities in West Pakistan and offered a maximum scope to the private sector in industries like cotton textiles, woolen cloth, sugar, food canneries, chemicals, telephones, cement, and fertilizer.
For instance, in the total of 3 lakhs (300,000) of armed forces in 1970 only 40,000 personnel were from the East Pakistan, while in the Civil services numbers of Bengalis were much less as compare to their proportion of population.
Talking about economic disparities peter says "Although both the wings (East and West Pakistan) produced about the same quantities of food grains, nutritional levels of the Bengalis were lower.
After that Sheikh Mujibur Rahman, very popular political leader in the East Pakistan create six point movements including all kind of economic and educational discrimination.
The oppression of the Muslim League against the Bengali nation, language, and culture and also the six years of tyranny of Pakistani rulers, against them this election was a ballot revolution.
In 1966, to make East Pakistan free from the colonial rules and oppressions, Sheikh Mujib declared six points movement.
As the six-points movement got no approval from West Pakistani authority, and moreover, they conspired against the major political leaders of East Pakistan.
[citation needed] Discontent against Pakistan's "Urdu-only" policy had spilled into mass agitation since 1948 and reached its climactic strength after police fired upon and killed student demonstrators on 21 February 1952.
Ethnic and socio economic discrimination against Bengali people aggravated and agitations arose in East Pakistan over sectional bias, neglect and insufficient allocation of resources and national wealth.
[citation needed] One of the first groups demanding the independence of East Pakistan was the Shadhin Bangla Biplobi Porishad (Free Bengal Revolutionary Council).
[citation needed] and launched the Six point movement demanding substantial political, administrative and economic autonomy for East Pakistan.
When Pakistan's president Yahya Khan and West Pakistani politician Zulfikar Ali Bhutto resisted Mujib's claim to form the government, sectional hostility escalated significantly.
Led by General M. A. G. Osmani and eleven sector commanders, the Bangladesh Forces waged a mass guerrilla war against the Pakistani military.
They secured control of most parts of the countryside and the independent state of Bangladesh was officially declared by the Awami League's government-in-exile in Mujibnagar.
Mujib's trademark "Joy Bangla" (Glory to Bengal) salute became the rallying cry of Bengali nationalists,[citation needed] who mobilised to form the Mukti Bahini guerrilla force, which received training and equipment from the Indian government.
Indian intervention at the height of the liberation war would eventually lead to the surrender of Pakistani forces and the establishment of the Bangladeshi state on 16 December.