Explain the process of hatching eggs under broody hen in rural areas

Firstly eggs will only be fertile if the hens have been running with cockerels, if this is the case all is good, but if there are no boys in the camp you will have to procure yourself some fertile eggs of your chosen variety pretty rapidly. The other thing you will need to consider is that 60% of all hatchlings will be male and for reasons such as noise or dominant and aggressive behaviour they may need to be re-homed or dispatched before undesirable male traits develop.

A broody mum will have prepared the nest ready for her babies and will sit on just about anything egg-shaped and be very possessive of them. If you need to replace her dud clutch with fertile eggs it is now that you will have to surreptitiously swap them over – this is most easily done at night when she is drowsy or asleep. If possible, buy fertile eggs that are known to have been laid on the same date, otherwise carefully mark dates on them with a pencil so you know when to expect them to hatch. 

you didn't give any options but heres what i can tell you: an inference is likely to change based on additional observations. the latter is something that you have seen or sensed using your sensory organs while the former is like a conclusion out from what you have observed.