You can say it in these ways:
Happy Dewali
Happy Deepawali
Dewali Ki Subh Kamniya.
Diwali, as in the festival, is the correct spelling.
Diwali is sometimes known as Divali, Deepavali or Deepawali.
Happy Diwali
happy diwali. u and ur family always be happy . Enjoy d diwali.
"Subho dipabali" means "Happy Diwali" in Bengali.
"Eniya deepavali nalvaalthukkal" is happy Diwali in Tamil.
"shubh deepawali" is the way to say Happy diwali in hindi.
Diwali ra ram ram sa
Diwali but it is pronounced DEE-VAHL-EE
In Hindi you say: Diwaali ki mubaarak ho or Shubh Deepavali.
Diwali is one of the important festivals in India. It is the festival of light. "Happy Diwali" is a greeting one conveys to other on occasion of Diwali.
To say happy diwalin in Punjabi "Diwali di Kushiain" pronounced """"""di-VA-lee Dee kush-ee-AA or to say it in Hindi it would be "Diwali Mubarak"
Happy Diwali itself in English, is a welcome address to any acquaintance on the day of Diwali.In fact Diwali is the Festival of Light,celebrating Goddess Kali who (as per Hindu Scripture) removes all darkness from the lives of the devotees.By wishing happy Diwali to anybody, one wishes that the life the person addressed is filled with happiness and joy.
There is no such language as "Indian."