Navayana Buddhism, also known as Neo-Buddhism or Ambedkarite Buddhism, is a modern reinterpretation of Buddhism that was championed by Dr. B. R. Ambedkar, a prominent social reformer and political leader in India. Ambedkar's Navayana Buddhism emphasizes the principles of equality and social justice, and has gained a significant following among marginalized communities in India.

However, Navayana Buddhism is not widely recognized by other Buddhist traditions. This is due to a number of reasons, including historical differences and disagreements over doctrinal interpretations.

One of the key differences between Navayana Buddhism and other Buddhist traditions is the rejection of the traditional caste system in India. Ambedkar, who himself was born into a lower caste, saw the caste system as a form of social oppression and believed that it went against the core teachings of Buddhism. He argued that traditional Buddhism, which was brought to India by the Brahmin class, had become corrupted by the caste system and needed to be reinterpreted to promote equality and social justice.

This rejection of the caste system has been met with resistance from some traditional Buddhist communities, who view it as a departure from the original teachings of the Buddha. They argue that the caste system was not a part of Buddhism, but rather a cultural practice that was prevalent in India at the time.

Another point of contention between Navayana Buddhism and other Buddhist traditions is the role of Ambedkar himself. While Ambedkar is revered as a leader and teacher in Navayana Buddhism, other Buddhist traditions do not recognize him as a figure of authority. This is because Ambedkar did not undergo traditional Buddhist training and was not ordained as a monk. Some traditional Buddhists also criticize Ambedkar's emphasis on social activism and see it as a departure from the traditional focus on personal spiritual development.

Despite these differences, there have been efforts to bridge the gap between Navayana Buddhism and other Buddhist traditions. In recent years, there have been dialogues and collaborations between Navayana Buddhists and traditional Buddhist leaders, with the aim of finding common ground and promoting unity within the Buddhist community.

In conclusion, while Navayana Buddhism has gained a significant following among marginalized communities in India, it is not widely recognized by other Buddhist traditions. Differences in interpretations of doctrine and the rejection of the caste system have created barriers between Navayana Buddhism and traditional Buddhism. However, there are ongoing efforts to promote understanding and unity within the Buddhist community.