www.irctc.co.in karke ekk website hai, ispe current availability check karne par har train(chattisgarh express ko chorke, isme bhii 3A/2A main available hai) main 3A main 10 SE Jada, SL main 30 SE Jada available hai. (I'm taking NDLS-BSP)
Current main hi kya, peak season ka time hai and har train main agle 2-3 din ke liye jagah khali hai. Aab agar aap bologe Diwali par dekhna to USS samay to sabse loss wali train bhii profitable ban jati hai.