To correct the discrepancy in your father's name across your documents, follow these steps:

1. Affidavit Preparation: Draft an affidavit stating that the names "Akhlesh Kumar" and "Akhilesh Kumar" refer to the same individual, your father. This affidavit should be executed before a First Class Judicial Magistrate.

2. Gazette Notification: Publish a notice in the official gazette declaring the correct spelling of your father's name. This serves as a public record of the correction.

3. Newspaper Publication: Publish an advertisement in two local newspapers (one vernacular and one English) announcing the correction of your father's name.

4. Document Updates: Submit copies of the affidavit, gazette notification, and newspaper advertisements to the relevant authorities to update your educational and other official documents.

By following these steps, you can rectify the name discrepancy across your documents. It's advisable to consult with a legal professional to ensure compliance with all legal req

uirements.