Mumbai (Maharashtra) [India], January 16 (ANI): Actor Kartik Aaryan penned a sweet note for his mother Mala Tiwari on her birthday. Taking to Instagram, Kartik shared a dancing video featuring her mother. Sharing the video, he wrote, “Happy Birthday to my favourite person in the world. I wish you keep dancing like this and be this happy person always.. Love you Mummy.” As soon as the video was uploaded, fans and industry members flooded the comment section. Ayushmann Khurrana dropped heart and cake emoticons. Raveena Tandon wrote, “Many many happy returns of the day!” Shilpa Shetty Kundra comm…