I had to imagine that the way Mr. Kapoor reacted also
had to remind Karama of some other unpleasant spats that he had in his past, at home.
As for refusing a resignation...I had assumed it can be done, because even in the American military (which is all-volunteer), you can choose to join, but once you do join, there are things you don't get a say in, and I think
that a resignation could be refused.
As for Nechayev hoping to turn Kapoor into a spy...that does
sound like typical Nechayev, now that you say it.