You can create a folder, say lib, within the folder where you have the jar file.
Manifest.MF contents can be:
Main-Class: com.mastergaurav.test.app.MainClass
Class-Path: lib/one.jar lib/two.jar
Folder contents:
mainFolder/
* lib/one.jar
* lib/two.jar
* my-main.jar
To execute:
java -jar my-main.jar