Former Union Home Secretary R.K. Singh is expected to join the Bharatiya Janata Party (BJP) on Friday afternoon.
A Times Now television channel report late on Thursday evening revealed that a formal announcement of Singh joining the BJP would be made at 4.30 p.m. on Friday.
Singh, a retired Indian Administrative Service (IAS) officer of the Bihar cadre (1975 batch) was the Union Home Secretary from July 1, 2011 till June 30, 2013. He succeeded G.K. Pillai and has since been succeeded by Anil Goswami.


