On Valentine's eve in 2016, he released a single dedicated to lovers, a song titled "Avalukena", under the banner of Sony Music. After a short break, Anirudh released a single from Rum in April 2016; "Hola Amigo". In May 2016, Anirudh signed a deal with Sony Music India. As per the deal, from here on, the independent albums and live concerts of Anirudh will be published and promoted by the global giant. Music giant Sony music presented a multi-platinum disc plaque for his successful collaborations with Sony Anirudh again teamed up with Sivakarthikeyan For Remo. The album featured 8 tracks, with Behindwoods and Indiaglitz crediting "Remo's music is definitely a cupid's arrow from Anirudh" and "Some beats, a little melody, and a whole lot of fun, Remo is soulful jukebox", it became one of his album topping the iTunes charts. Then, on 12 November 2016, he launched the audio of his cousin Hrishikesh's horror flick Rum. In late 2017, Anirudh launched the first single "Surviva" and became fastest Tamil song to get 1 million streams, this track saw the comeback of Yogi B back to the Tamil music. Anirudh launched the next single, "Thalai Viduthalai". It was written by director Siva and sung by Anirudh and Harish Swaminathan. Anirudh used the "Death Metal" first time in kollywood for this track. This song was also considered a tribute to the ultimate star Ajith Kumar, who had completed 25 years in the Tamil film industry. After a HipHop and Death Metal, the third single was a romantic classical fusion; "Kadhalaada", featuring Pradeep Kumar and Sasha Tripathi. Anirudh launched the complete album with 4 other tracks. The English song "Never Give Up" featuring Raja Kumari. The album was topping iTunes, Saavn and other digital platforms, its completely an international album. He again teamed up with Sivakarthikeyan, it was their 5th collaboration. He has experimented with genre and given variety in the album. It has a kuthu vibe Karuthavanlaam Galeejam expressing about colour and caste, sung by Anirudh himself. A romantic melody track Iraiva which features Anirudh and Jonita Gandhi, the track breaks into two genres it starts as a soft melody expressing love, then suddenly enter into a metal genre. Another melody Idhayane by Neeti Mohan and Anirudh. Vaa Velaikkara song sung by Shakthishree Gopalan, Bjorn Surrao is offbeat, and an introduction to trance-psychedelic music. It has a motivational track Ezhu Velaikkara sung by Siddharth Mahadevan. It's overall a catchy emotional album' A Hindi pop music video Bewajah, composed by Anirudh and sung by Anirudh, Irene and Srinidhi Venkatesh, which is also India's first ever vertical video was released by Sony Music India. The video features a love-torn duo whose romance is narrated through animated movie posters. The song became an instant hit etching several million views. In 2018, he made his Telugu debut with Agnyaathavaasi, which has 6 tracks, a fast-paced massy introductory track Dhaga Dhagamaney sung by Anirudh himself, a sweet melody Baitikochi Chuste song ruled by the guitar chords and enchanting flute, It was an instant hit among youngsters with its quirky lyrics and a catchy foot-tapping tune, Gaali Vaaluga sung by Anirudh was also instant hit among music lovers. Niranjana Raman has sung a beautiful classical number, Swagatham Krishna, the inclusion of the guitars and synths gives an enchanting experience throughout the track. Nakash Aziz has crooned peppy number AB Yevaro Nee Baby and Pawan Kalyan has sung a folk number Kodakaa Koteswar Rao. The whole album has been received well. His BGM received praises for his fresh sound. Next, he composed for Suriya's Thaanaa Serndha Koottam, which was a remake of Special 26. The song "Sodakku" was an instant hit among the masses. After that, he composed for Nayanthara's Kolamavu Kokila, which was well received and was praised for being unique. The song "Gun Kadhal" became popular among Anirudh fans. On 10 December, the full album for Rajinikanth's Petta was released by Anirudh. While the song "Ilamai Thirumbudhe" was praised by Siddharth Srinivas from Only Kollywood.com, the songs "Marana Mass" and "Petta Theme" became chartbusters. His next project was Nani's Telugu film Jersey, which is directed by Gowtam Tinnanuri. He later appeared in Gang Leader which was directed by Vikram K Kumar. This marked his second collaboration with Nani. After that he appeared in Darbar, which was directed by AR Murugadoss.