If rsa partner has sl tkt bookings and other non means rsa is main train
There are cases where sl, ac are termed as 2s, cc class too see pic below
Tpty to mas full exp rake is used as intercity
please wait...Translate to HindiAgar RSA partner ke paas SL TKT bookings hai aur dusre non means RSA is main train
Wahi par aise bhi cases hote hain jahan SL, AC ko 2S, CC class ke roop mein bhi dekha jata hai, neeche pic dekhein
TPTY se MAS poora express rake ko intercity ke liye istemal kiya jata hai