change of name has to be by notification in official gazette and publication in 2 local newspapers in india 

2) also you need an affidavit of name change duly attested before indian consulate 

Yes,

You have to first create Name change Affidavit, Then Two give tow National Newspaper Advertisement one in English and other in local Language and third apply for Gazette State or Central. My suggestion is better to apply for Central Government Gazette.

Name will change by the order of the Collector of district you are domicile of. General application will submit and paper publication.

If you are still an Indian citizen then you may have to pursue the matter of name change process adopting due process of Indian law. 

You first have to prepare an affidavit declaring your new and old name,  give brief reason for changing your name,  get it notarized and then issue a public notice through newspaper publication in the local. 

After that you may have to get this name changed through a government Gazette publication of the state you belong to in India. 

You have to present in India to sign the affidavit and other related papers. 

- You can publish a declaration /public notice in two leading news paper in US for the same. 

- Further, being an Indian , you can publish the same in official Gazette as well  after declaring that you have changed your name with new name, and the new name will be used for future purposes. 

The process for changing your name in the USA may vary slightly depending on the state in which you reside, but the general steps are as follows:

Check the requirements: Make sure you are eligible to change your name and meet the requirements set by your state. Typically, you must be at least 18 years old and not have any criminal convictions or outstanding debts.

Fill out the forms: Obtain the necessary forms from your state's courthouse or online. These may include a petition for name change, a background check form, and other documents. Fill out the forms completely and accurately.

Get fingerprinted: Many states require a background check and fingerprinting for a name change. Find out where to get fingerprinted in your area.

File the forms: Once you have completed the forms and background check, file them with the court clerk in the county where you reside. You will need to pay a filing fee, which can vary by state and county.

Attend the hearing: After you file your forms, you will need to attend a court hearing. The court will review your petition and may ask you questions about your reasons for changing your name.

Receive the court order: If the judge approves your petition, you will receive a court order granting the name change. You will need to provide a copy of this order to various government agencies and others to update your name on identification documents, such as your driver's license, passport, and social security card.

It's important to note that the process and requirements for changing your name may vary by state, so it's best to check with your local courthouse or a legal professional for more specific information and guidance.