Refer
/blog/post/1246509.
When my friend asked a coolie in front of LKO, he asked "platform no kitna hai? choti line ya badi line, kahan jana hai?" My friend told pf-6 ko jana hai, jahan 13168 Exp aati hai.....(as per train enquiry). He told woh to alag hai....100 rupiye dena parega....they went there. But pata chala ki train udhar se nahi jati...so they returned. Saw in electronic display board that, train yet to come to pf-6. Iska matlab kya hai ? What is choti & bai line? Udhar do do pf-6 hai kya ? Please clear it.