The salary of a DRM in the Indian Railways falls under the pay scale of Level-14 of the 7th Central Pay Commission (CPC). The minimum basic pay for a DRM in the Indian Railways is Rs. 1,44,200 per month, and the maximum basic pay is Rs. 2,18,200 per month. However, the actual salary of a DRM may vary based on other factors such as allowances, deductions, and promotions. It is also important to note that the salary of a DRM may increase over time as they gain more experience and move up the ranks in the Indian Railways.