Mathew, an ad-filmaker, made his directorial debut with "Hasee Toh Phasee" (2012), starring Parineeti Chopra and Siddharth Malhotra.
"It's a romantic drama. It has elements of humour but it is a serious one. It is an original film," Vinil, 38, told PTI.
"Our writer Harsh Kulkarni is writing the story. We haven't decided who will produce the film," he said.
Considering Vinil's debut film had established actors he is thinking to rope in known actors this time as well.
"We haven't thought of any actors yet. We might go with established actors. But nothing is finalised yet it depends on their dates and availability," he added.