Rajkumar Rao and Shruti Haasan starrer “Behn Hogi teri” trailer is out and it will show Rajkummar Rao in different character, which is played by Rajkummar Rao expressed his feelings in the trailer and says, "Ek launda bata do jo ek ladki ko pehli bar dekh ke bole, kya ladki hai na, kash yeh meri behen hoti.