Naxal strike at jail as Gill makes first visit to Bastar - Indian Express Press Trust Of India , Press Trust Of India , Press Trust Of India , Press Trust Of India : Raipur , April 20 , Fri Apr 21 2006 , 01:47 hrs In the second such attack on Narayanpur jail this week , Naxalites triggered three landmine blasts at the prison last night but did not cause any damage , police sources said today .