Please see the application process for all the above consular service at URL https://indianembassybrussels.gov.in/generalconsularInformation.php in the website of Indian Embassy Brussels https://www.indianembassybrussels.gov.in/
Applicants are requested to read the instructions carefully and fill in the appropriate application form, print and submit it along with requisite documentation, passport, photos fees etc at the Honorary Consuls desk in Luxembourg. For Check lists and various application forms please visit the website of Indian Embassy Brussels https://www.indianembassybrussels.gov.in/
Apart from the fee mentioned in the Embassy website a 15 Euro courier charges apply per application.