Hi Folks,
Please find some pointers for such requirements,
Add the route in master instance to use the vr.inet.0 table:
set routing-options static route 0.0.0.0/0 next-table vr1.inet.0
https://kb.juniper.net/InfoCenter/index?page=content&id=KB23843
https://kb.juniper.net/InfoCenter/index?page=content&id=KB22499&actp=METADATA