As of the latest available data, Central Railway School, Kalyan, has a total student strength of 1,278.

The distribution across various classes is as follows:

• Junior KG : 95 students
• Senior KG : 99 students
• Class I : 97 students
• Class II : 82 students
• Class III : 84 students
• Class IV : 83 students
• Class V : 74 students
• Class VI : 90 students
• Class VII : 92 students
• Class VIII : 74 students
• Class IX : 98 students
• Class X : 99 students
• Class XI (Arts) : 9 students
• Class XI (Commerce) : 62 students
• Class XI (Science) : 61 students
• Class XII (Arts) : 1 student
• Class XII (Commerce) : 57 students
• Class XII (Science) : 20 students

Please note that these figures are based on data from 2022. For the most current information, I recommend contacting the school's administration directly. You can reach them through their official website