Your father's name is D. Gopal Reddy in your certificates and name of your father is same in all your ID Proofs. Where is the problem? If you are above the age of eighteen years then only your certificates will be asked for all purposes. If you want that your father's name should reflect as D. Raja Gopal Reddy in your certificates and ID proofs, then you have to follow specified procedure for name change. It should be changed in all the certificates and ID proofs. There are three simple steps to be followed to change the name in certificates.
1. Affidavit- First step to change the name of an individual is through affidavit issued by local notary available near to you. Mention the proper reason to change the name. You have to mention the correct name to be reflected in your documents with proper reason.
2. Next step is publishing the correct name in two news papers at least and preserve the 10 copies of those news papers. Apart from preserving the hard copy , you can preserve the soft copy of those news papers in which name change matters has been published.
3. For publishing your matters in gazette notification of India, send the copy of affidavit and news paper copy to gazette notification department Delhi. This is the complete process to change the name of an individual in certificates.
On the issue of name in your certificates there will not be any problem in Government/ Private job.