1) Processing time: As a general rule, a decision will be taken by the Embassy/Consulate within 15 days from the submission of the visa application. However, this deadline may be extended up to 30 days and even, exceptionally, 60 days, if a more detailed examination of your application and/or additional documents are required. In that case, your application will be sent to the Aliens Office in Belgium, which will make the final decision.
2) Kindly refer the below link for appointment purpose: https://www.vfsglobal.com/Belgium/India/schedule-an-appointment.html
3) Refer the below link regarding Visa Fee/Online Application Form:
4) VFS Address: Kindly refer the below link for Belgium visa application submission Centre as per jurisdiction: http://www.vfsglobal.com/belgium/india/contact-us.html