Mystery behind Siddharth's twitter handle

Marathi actor Siddharth Jadhav recently sparked a buzz about his social media presence on his micro-blogging website.
Leaving his followers puzzled, he said, "18 jan onwords my tweeter handle will change.. wait till 18 jan... @sameerbhosle" (sic). He mentioned the date, January 18, twice in his message, increasing speculations as to what sort of change is to be expected on the coming Sunday.
Siddharth has appeared in lead roles in 'Bakula Namdev Ghotale,' opposite Sonali Kulkarni, and in 'Huppa Huyya' against Girija Oak-Godbole. He also played important characters in 'Jatra', 'Saade Maade Teen', 'Me Shivajiraje Bhosale Boltoy,' and 'Time Please.' In addition, the versatile actor has also appeared in two bollywood movies from the Golmaal series.