Upvote:2
I have been to India from Singapore recently. They won't isolate or quarantine healthy travelers without symptoms from Singapore. This is the process they follow.
If you have a fever, you will be isolated and medical personal will take over.
Note: India is tightening the process, more restrictions can be placed in future.
Upvote:3
They don't. Per IATA, as of March 5th, measures for travellers from Singapore are limited to medical screening on arrival:
Passengers arriving from China (People's Rep.), Hong Kong (SAR China), Indonesia, Iran, Italy, Japan, Kore (Rep.), Macao (SAR China), Malaysia, Nepal, Singapore, Thailand or Viet Nam must go thorough medical screening upon arrival.
Source: https://www.iatatravelcentre.com/international-travel-document-news/1580226297.htm
...and this is obviously subject to change at any time, although Singapore seems to have things pretty well under control.