India, Feb. 15 -- If you are a web series aficionado and love the thriller genre, then the spy and espionage segment is an obvious choice to explore. The suave and sharp agents in these shows change identities and melt into the backgrounds to take down the bad guys. Naturally, the best spy thriller series feature operatives who win over viewers with their charming and slick ways while unravelling global conspiracies.

Encompassing elements of crime, drama, suspense and action, the success of a spy series lies in a tight storyline, a high-stakes mission with severe consequences, and, of course, an agent with a strong personality who is willing to go to any extent in the show to save the day.

While most of the series are heavy on action, s...