8. Learned Counsel for the Respondents submits that notice under Section 13(2) and 13(4) of the SARFAESI Act were never served upon the Respondents. It is further submitted that even the receipts of service of notices were not filed by the Appellant. All the actions of the Bank are against the law. Compliance of Rule 8(6) 9(1) of the Security Interest (Enforcement) Rules, 2002 was not made. 9. As far as service of notice under Section 13(2) and 13(4) of the SARFAESI Act are concerned, nothing has been brought on record to show that these notices have ever been served upon the Respondent Nos. 1 and 2 which are the mandatory provisions. Service upon the borrower or the guarantor or mortgagor is mandatory under the law. Non service of notices vitiates all the proceedings. No doubt, notice could be served through paper publication but initially when the notices were sent through posts, those receipts should have been brought on record. Hence, Learned DRT has rightly concluded that notice under Section 13(2) and 13(4) of the SARFAESI Act were not served upon the Respondents herein.