Actress Shraddha Kapoor, who on Wednesday began the shoot of horror-comedy "Stree", was a bag of mixed emotions."First day of shoot for me on 39Stree39. Wish me luck everyone! Excited, nervous and feeling very thankful," Shraddha tweeted. The film, directed by Amar Kaushik, also stars Rajkummar Rao. It is being backed by Maddock Films, jointly produced by Dinesh Vijan and Raj and DK.Other details of the film are still under wraps.This will be the first time Rajkummar and Shraddha will be seen sharing screen space together.