Yes, the Brahmo Samaj did have several branches and offshoots that emerged over the course of its history. The movement itself was founded in 1828 by Raja Ram Mohan Roy, who sought to reform Hindu society and religion by promoting monotheistic beliefs and rejecting idol worship.

One of the earliest offshoots of the Brahmo Samaj was the Adi Brahmo Samaj, founded in 1866 by Debendranath Tagore, the son of Raja Ram Mohan Roy. This branch of the movement emphasized the worship of one God and rejected the authority of the Vedas, while still maintaining a strong connection to Hindu traditions and customs.

Another important offshoot of the Brahmo Samaj was the Sadharan Brahmo Samaj, founded in 1878 by Anandamohan Bose. This branch was more liberal and inclusive, welcoming people from different castes and religions into its fold. It also placed a greater emphasis on social reform and worked towards the upliftment of women and the eradication of caste discrimination.

In addition to these major branches, there were also smaller offshoots such as the Prarthana Samaj in Maharashtra, founded by Atmaram Pandurang in 1867, and the Brahmo Samaj of India, founded by Keshub Chandra Sen in 1866. These offshoots were influenced by the Brahmo Samaj's ideals of social reform and monotheism, but also incorporated elements from other religions such as Christianity and Islam.

The Brahmo Samaj also had a significant impact on other reform movements in India, such as the Arya Samaj and the Ramakrishna Mission. Both of these movements were inspired by the ideals of the Brahmo Samaj and sought to reform Hinduism through the promotion of monotheism and social reform.

It is worth noting that while the Brahmo Samaj had several branches and offshoots, they all shared a common goal of reforming Hindu society and religion. They may have differed in their approaches and beliefs, but they were all united in their desire to create a more progressive and inclusive society.

In conclusion, the Brahmo Samaj had a significant impact on Indian society and religion, and its influence can still be seen today in various reform movements. Its branches and offshoots played a crucial role in spreading its ideals and shaping the course of Indian history.