Fiji:
- PASSPORT AND/OR PASSPORT REPLACING DOCUMENTS MUST BE VALID
FOR AT LEAST 3 MONTHS BEYOND THE PERIOD OF INTENDED STAY.
India:
- PASSPORT AND/OR PASSPORT REPLACING DOCUMENTS MUST BE VALID
ON ARRIVAL.
Korea:
- PASSPORT AND/OR PASSPORT REPLACING DOCUMENTS MUST BE VALID
ON ARRIVAL.
Australia:
- PASSPORT AND/OR PASSPORT REPLACING DOCUMENTS MUST BE VALID
ON ARRIVAL.
Singapore
- PASSPORT AND/OR PASSPORT REPLACING DOCUMENTS MUST BE VALID
FOR AT LEAST 6 MONTHS ON ARRIVAL.
I'd strongly recommend you to apply for a new passport.
Singapore will probably deny you entry.