PRAYAGRAJ, March 28 -- Special 'Learning by Doing' laboratories have been set up in 48 government-run upper primary (Classes 6 to 8) and composite (Classes 1 to 8) schools of Prayagraj district at a cost of Rs 20.76 lakh. The aim of these schools is skill development of students of Classes 6 to 8, but technical instructors have not been appointed yet to teach the students....