NEW DELHI — Priyanka Chopra, one of India’s most famous actresses, who found crossover appeal playing an F.B.I. recruit on the ABC drama “Quantico,” has apologized for a plotline involving terrorism by Indian nationalists ahead of a summit meeting about Kashmir.

“I’m extremely saddened and sorry that some sentiments have been hurt by a recent episode of Quantico,” she wrote on Twitter on Sunday. “That was not and would never be my intention. I sincerely apologize. I’m a proud Indian and that will never change.”

ABC Studios also apologized for wading into a delicate political situation, emphasizing in a statement that the episode was fictional and that much of the backlash had been unfairly directed toward Ms. Chopra, “who didn’t create the show.”

“The show has featured antagonists of many different ethnicities and backgrounds, but in this case we inadvertently and regrettably stepped into a complex political issue,” the statement said.