CBS' hit sitcom "The Big Bang Theory" returns on Thursday with two premiere episodes -- "The Hofstadter Insufficiency" and "The Deception Verification." In the previous season of "The Big Bang Theory," Raj (Kunal Nayyar) got himself a socially awkward girl-friend, Lucy (Kate Micucci). However, Lucy ditched him as she was finding it difficult to cope-up with the pressure of meeting new people.

According to The Hollywood Reporter, Kate Micucci is all set to return to reprise her role of Lucy in Season 7 of "The Big Bang Theory." She will be meeting Penny (Kaley Cuoco) in episode eight, which is scheduled to air on November 14, 2013. However, it is not yet confirmed whether Lucy meets Raj or not.

In "The Big Bang Theory" Season 6 finale, Raj was able to speak in front of women, without the assistance of alcohol. "I'm not sure it's a good thing that Raj can talk to women because he's going to put his foot in his mouth a lot," Kunal Nayyar said to The Hollywood Reporter.

The Top Seven Spoilers of "The Big Bang Theory" Season 7

Spoiler 1: In Leonard's (Johnny Galecki) absence, Sheldon (Jim Parsons) and Penny are going to spend quality time, together. They are going to come closer and share intimate secrets. (Leonard is at the North Sea for Stephen Hawking's expedition).

Spoiler 2: Leonard returns in episode 2 of "The Big Bang Theory" Season 7. Sheldon will be crestfallen when Leonard comes back from the North Sea.

Spoiler 3: Amy (Mayim Bialik) and Bernadette (Melissa Rauch) hit the road, together to have fun without boys and Penny, but end up gossiping about boys.

Spoiler 4: Amy and Howard (Simon Helberg) share screen time together for the first time in the upcoming season, minus the usual group.

Spoiler 5: Leonard's genius mother, Beverly (Christine Baranski), returns in the upcoming season of "The Big Bang Theory," again via Skype.

Spoiler 6: Ms Davis (Regina King), the director of human resources at Caltech, will make her appearance in "The Big Bang Theory" Season 7.

Spoiler 7: Leonard and Penny relationship to solidify.