Kachroo, who in recent months has worked on the death of Nelson Mandela, interviewed Robert Mugabe and covered the Oscar Pistorious trial, replaces Lucy Manning, who moved to the BBC earlier this summer to become a special correspondent.
The 73 UK regional daily and Sunday newspapers listed by ABC in its data lost sales by an average of 13.5 per cent year on year in the first half of 2014.
The biggest faller was a Newsquest title for the third period in a row. This time the title losing sales at the fastest rate was the South Wales Argus, down 33.2 per cent year on year to an average of 13,197 sales a day.
The dramatic sales drop for the Argus follows a 44 per cent price increase from 45p to 65p.