In India 'esoteric' or tantrika Buddhism happened tb e the?

In India, esoteric or Tantrika Buddhism emerged around the 7th century CE, developing from Mahayana Buddhism with a focus on secret teachings, rituals, and the use of mantras and mandalas. This tradition emphasized direct experiences and personal transformation, often incorporating elements of Hindu and local spiritual practices. Key texts, such as the Guhyasamāja Tantra, played a significant role in shaping its doctrines. Tantric Buddhism later spread to Tibet and other regions, influencing various Buddhist practices.