Lets say a train is cancelled between chiplun n Ratnagiri
And KR announces transshipment between 16346 and 10103
So passengers arriving by 16346 will have to get down at Ratnagiri where KR wud have arranged buses
These buses will ferry passengers from Ratnagiri to Chiplun station where 10103 will be waiting
Passengers...
more... will board 10103 (now 16346) and reach Mumbai
Similarly 10103 pax will deboard at Chiplun and with help of buses reach Ratnagiri
Then they will board 16346 rake and go to Madgaon
Buses cost will be borne by KR