Over to this! doesnt matter how eager upsc is to conduct the exams if the public transport doesnt get back to the normal operational level (ie.of pre corona phase) , it will be a difficult task for upsc to conduct the exams.
On any normal day indian railways was operating 13000 trains, but now its reduced to a even less than a quater of it. From June 1st 200 more trains will ply across india which is no way close to normal operational level. Even if we consider that the railways will subsequently increase the number, but we cant say it with certainty how long will it take. As on 5th of june when the decision will be taken, its highly unlikely that railways would have resumed full operation.
secondly, only 30 days advanced booking facility is available for trains as of now, and more to that, today odisha announced compulsory home quarantine of 14 days for people returning to the state. ( 7 day institutional quarantine for rural). Considering most of the trains are running at full capacity, and if one gets a journey date of say anywhere in the later part of june, he can no way appear for exam.
Being CS aspirants we sometimes tend to forget , it is not just the only exam upsc has to conduct, ies mains is also pending and so are the interviews. At the end of the day its the sole decision of UPSC which will prevail but looking at the present conditions , its highly unlikely UPSC would want to take a risk by conducting prelims.
UPSC is not supposed to wait for things to get normalised! Pockets of infections will keep appearing for months or even years ahead until a large scale vaccination would be done , but instead they will have to wait to get past the peak phase(which most of the countries which saw worst than us like italy have already passed) after which new cases will come down gradually.
So it will wholly depend on the situation in the states !
And talking about shops! They were already open in many states since past few weeks. Individual movement will still be restriced during a particular time frame of the day and this is the factor upsc will take into consideration ,(they had to eventually allow opening up of businesses, shops to support the already deteriorating economy but conducting an exam is a different game altogether)
The food chain you are talking about is one based on rules of nature! A tiger eating a deer is justified not a human eating tiger or a deer.
Here we are not contributing in any way to a food chain. Chickens and other animals for slaughter are rarely wild! Mostly raised in enclosures for sole purpose of consumption so food chain concept doesnt apply here as nature is not operating freely here . And i am expecting you must be aware of meat industry and its impact on environmental resources too!