Hello Shashikant,

NTPC does allow candidates to make some changes in case of a mistake in the application. For this they need to visit the official website and find the option that reads "RRB NTPC Application Correction". However, you need to pay a certain amount of money for correcting your details. After making the payment, just hit "modify registration" and the changes should reflect in your application. Please note that you can only make changes to your application TWICE. As of now, the application correction date has not been announced by the authorities .

You can correct the following details in your application form:

• Personal Details
• Parent Domicile
• Gender
• Category
• Subcategory
• Qualifying Examination details
• Education details
• Examination centre preferences
• Signature
• Photograph

You can perhaps check out the category and subcategory tab for correcting your caste details. I hope that answers your question. Please reach out to me in case of any confusion. Good luck!