hello neha, yes as you know due to coronavirus pandemic, Board decided to postponed few exams, and yes it will affect result also. here is one website where you will get the date for all announcing results and here is cbse result date (https://4eno.in/result/cbse-board-class-10th-12th-result-expected-date/)

Hello,

No the exams which are already finished will not be rescheduled.

Rescheduling is for the exams which are not yet commenced.

The result date of cbse class 10th board exams has not been declared yet but  most probable are to be expected in the first week of may.

Good luck for your results!