Chaitanya Mahaprabhu (also transliterated Caitanya, IAST caitanya mahāprabhu) (1486–1534) was a social reformer in eastern India (specifically present-day Bangladesh and states of West Bengal, Bihar, Jharkhand, Manipur, Assam, and Odisha of India) in the 16th century, worshipped by followers of Gaudiya Vaishnavism as the full incarnation of Lord Krishna.
Reincarnation is the religious or philosophical concept that the soul or spirit, after biological death, begins a new life in a new body that may be human, animal or spiritual depending on the moral quality of the previous life's actions. This doctrine is a central tenet of the Indian religions. 
Uttarakhand, formerly Uttaranchal, is a state in the northern part of India. It is often referred to as the "Land of the Gods" due to the many temples and pilgrimage centres found throughout the state. Uttarakhand is mainly known for its natural beauty of the Himalayas.
Nepal have many interesting temples. For example: Changu Narayan Temple. Changu Narayan: Narayan, or Vishnu, is the preserver of creation to Hindus. His temple near Changu village is often described as the most ancient temple in the Kathmandu Valley. a fifth century stone inscription, the oldest to be discovered in Nepal, is located in the temple compound and it tells of the victorious King Mandev. 
There are several other possible places to visit including the temples in Vishnupur, mosques in Malda, an interesting palace in Murshidabad and Sunderbans Wildlife Sanctuary, which has tigers. The holy place of Mayapur and Navadvipa is considered very sacred to Gaudiya Vaishnava devotees of Sri Chaitanya Mahaprabhu.