You have your parents full name in your 10th and 12th certificates but the rest of the documents have a different one. First check with your parents and decide on their given names.
Vijay Shankar Patel, would mean first,middle and last name, likewise Vijay Shankar would mean first and last names. Because you have a OBC certificate and would be intending to use this for the job quota, clarify.
If your parents names both have patel in the end, then you need to change the aadhaar,DL,Voters ID and OBC certificate.
First check that you have proper evidence for the full names (first,middle and last) of both your parents. IF they do not have proper documents, then you need to get an Notary affidavit done for both of them stating their correct name. Then print in one English and one vernacular language and keep both copies with you. Now you have a valid document regarding the names of your father and mother, you can proceed with the rest.
Aadhar card change:This can be done online or at the government help centers close to your place. This is the aadhar card name correction form, you cna download in from the government site(https://uidai.gov.in/images/UpdateRequestFormV2.pdf).
The documents need for name change would be proof of identity, you can choose from these(https://aadharcarduid.com/change-document-requirement).
Then you can go the RTO for the name correction in the Driving license, you would need an ID and address proof, the original DL, Correction form and the required fees. Some states have an online option for this service too.
For the OBC certificate, you need the have the similar ID proof documents of your parents and yourself and then approach the Thesil/Thasildhar/Village administrative officer under whose judristion your area comes under. Then get the caste certificate alos changed.
If your parents names are going to be only Vijay Shankar and Rukmani Devi, then you need to change your 10th a 12th marks certificates.
First get the affidavits for both parents as mentioned above with their first and last names, prepare an application letter to the 10th and 12th board stating the request of the service you need, forward it via the school/college principal.
Please check your PAN card also, if you are applying for a passport or have a passport already, kindly verify parents name in it because, if their is a mismatch, you would have issues when you apply for a visa in the future.