[10] Devaiah started his career from the Anurag Kashyap's feature film That Girl in Yellow Boots, alongside Kalki Koechlin and Naseeruddin Shah in 2010.

In the same year, Devaiah appeared in Bejoy Nambiar's Hindi thriller film Shaitan, starring Rajeev Khandelwal and Kalki Koechlin, where he portrayed the role of Karan Chaudhary "KC".

In 2012, Devaiah appeared in Vivek Agnihotri's erotic thriller Hate Story, produced by Vikram Bhatt, co-starring Paoli Dam.

[14] The same year, he played in Vasan Bala's crime thriller film Peddlers alongside Nimrat Kaur, where he portrayed the role of Ranjit D'souza, a 20-years old boy, who gets trapped in the drug trade.

[15] In 2013, Devaiah appeared in Sanjay Leela Bhansali's romantic-tragedy drama film Ram-Leela, starring Ranveer Singh and Deepika Padukone, where he played the role of Bhavani, which was a 'blockbuster' in the year.

After a year gap, In 2015, Devaiah appeared in Harshavardan Kulkarni's adult comedy film Hunterrr, co-starring Radhika Apte, where he portrayed the role of Mandar Ponkshe, a sex-addicted man and describing his lustful journey in life.