Purulia Express: লালপাহাড়ীর দ‍্যাশে যাবি? চিন্তা কিসের লো? বিকাল বেলা হাওড়া থেকে পুরুল্যা এক্সপেরেস পাবি। - Dip

Avoid upper berth (UB) if you can. Side Upper (SU) is fine. Every alternate upper berths are extremely difficult and dangerous to get up on Humsafar coaches and one can easily get injured while trying to climb it. (I was on 19 and 22 was slightly easier).
Despite being LHB, Rajdhani LHB Upper berth and Humsafar 3AC UB is NOT the same.

---