Anna Telugu Desam Party (ATDP) was a regional political party in the Indian
state of Andhra Pradesh. ATDP was founded on January 27, 1999, by N.
Harikrishna, the third son of the Telugu Desam Party founder N.T. Rama Rao. N.
Harikrishna held a revolt against the TDP leader N. Chandrababu Naidu.