No one owes anyone. All Sid s plans worked because of the team Paras and Mahira are the freeloaders and got merely saved each time the got nominated. I am neither Anti Shukla or Anti Asim usually comment on the game plan and in fact, liked this move by sid.
Sidharth said he feels he owes Paras for saving him and he's returning that.
Obviously I don't feel like anyone owes anyone anything but that Sidharths feeling.