12254 BHAGALPUR – BENGALURU YSPR Anga Exp
12319 KOLKATA CHITPUR – AGRA CANTT Express
12325 KOLKATA CPR – NANGAL DAM Gurumukhi Exp
12357 KOLKATA CHITPUR – AMRITSAR Superfast
12361 ASANSOL – MUMBAI CST Express
12369...
more... K HOWRAH – HARIDWAR Kumbh Express
12371 KOLKATA HOWRAH – JAISALMER Express
12377 K SEALDAH – NEW JALPAIGURI Padatik Exp
12379 K SEALDAH – AMRITSAR Sampark Kranti
12496 KOLKATA CHITPUR – BIKANER Pratap SF
12938 K HOWRAH – GANDHIDHAM BG Garbha Exp
13105 KOLKATA SEALDAH – BALLIA Express
13159 KOLKATA CHITPUR – JOGBANI Express
13415 MALDA TOWN – PATNA JN Express
13423 BHAGALPUR – AJMER Express
14003 NEW FARAKKA – NEW DELHI Express
15051 KOLKATA CPR – GORAKHPUR J Purbanchal Exp
15235 KOLKATA HOWRAH – DARBHANGA Express
19605/19414 KOLKATA CHITPUR – AHMEDABAD/Ajmer Express
19607 KOLKATA CHITPUR – AJMER Express
12353 KOLKATA HOWRAH – LAL KUAN Express
13425 MALDA TOWN – SURAT Express
12525 KOLKATA CHITPUR – DIBRUGARH Express
12376 ASANSOL – CHENNAI CENTRAL Express
All these trains are listed as Popular Trains by Eastern Railway. What is the criteria of being "Popular"? i have doubts about many of these trains as "Popular" because some trains in the list have been discussed many times as not preferred ones many a times.