people are street smart they will find a hack. 1stly railway need to make their premises like the metro premises then it can be implemented. we need to overhaul our ticketing system which will generate qr codes on all railway stations. this idea is good but i think railways should consider all possibilities and check all pro and cons and evaluate before implementing. some cons are people deboard before station at the outer. enter from the railway line side. huge bottlenecks.