In Marathi, for happy journey = shubh yatre saathi
To say "happy journey" in Malayalam, you can say "സുഖമായ പ്രയാണം" (sukhamaya prayanam).
Wadhdiwasachya Shubhechha!
Shiksak Dinachya Hardik Shubechya
lagnachya vadhdivsa nimitta hardik shubhecha
"Maligayang pagreretiro" is how you say happy retirement in Tagalog.
lagnachya vadhdivsa nimitta hardik shubhecha
Bon Voyage
You can say "नमस्कार" (namaskar) to greet someone in Marathi.
Happy journey : Rehla sae'eda written as : رحلة سعيدة
नव वर्ष्याच्या हार्दिक शुभेच्छा ! - Nav Varshyachya Hardik shubhechha !
Mazya priy muli la vaadhdivsachya hardik shubhechcha.
Sukhayathra!, Rasakaramaayirikkatte! (സുഖയാത്ര!, രസകരമായിരിയ്ക്കട്ടെ!)