As of now, the quota of lower berths per coach is earmarked at six in sleeper class, three each in 2AC and 3AC in normal trains. For Rajdhani, Duronto and fully AC Express trains the quota is four for 3AC and 3 for 3AC per coach.
from Zee News :India National http://bit.ly/2BQletk
from Zee News :India National http://bit.ly/2BQletk