You may adopted the following procedure for name change.
Karnataka Govt. has its own rules and same has to be followed by all the companies in Karnataka. The link is below:
The Karnataka Government Servants (Procedure for Change of Names) Rules, 1967.
BRUHAT BENGALURU MAHANAGARA PALIKE TO OBTAIN BIRTH AND DEATH CERTIFICATES OF ALL THE EVENTS OCCURED IN THE
Experience share by an individual
Notifying In Karnataka Gazette Regarding Your Name Change
Procedure to correct name in SSLC marks card?
There is a procedure you have to follow for correction of name in the SSLC mark sheet and you have to file an application for it to the board which will be forwarded by the School Headmaster. You can get your name changed by following a simple procedure which is given below.
• Just explain your problem to your school Headmaster that you have this problem in your mark sheet.
• You will be given an application form for correction of name in your certificate.
• You have to forward various documents related to your admission in the school
with this application like admission form which was filled during admission into the school, school leaving certificate and other relevant documents related to your admission which mentions your correct name.
• This application will be forwarded to the board by your school headmaster and if your documents are valid then there will be no problem in correction of your name in the marks sheet.
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Disclaimer : This answer is based on information given by you hence, It is just opinion of Lawyer. For specific answer you have to give details and facts and choose the Lawyer of your choice.