Born in Thrissur, Kerala, Anto is a product of the famed Tata Football Academy in Jamshedpur, Jharkhand where he graduated from in 2008. From 2008 to 2010 Anto played professionally in the I-League with Mohun Bagan before being released on 23 February 2010. Then, from 2010 to 2012, Anto played with Salgaocar in the I-League, scoring once against East Bengal at the Fatorda Stadium in a league match on 19 May 2011 in which he found the net in the 33rd minute as Salgaocar won 3–2. He also played one match for Salgaocar in the AFC Cup on 10 April 2012 against Jordan League side Al-Wehdat in which he started and played only 32 minutes, earning a yellow card, before being subbed off for Augustin Fernandes as Salgaocar went on to lose the match 1–2.
After playing two seasons with Salgaocar in the I-League, Anto signed for Quartz of the I-League 2nd Division in their search for promotion to the I-League. After not even being able to play in the 2nd Division, Anto joined the Kerala football team that played in the 2013 Santosh Trophy in which he reached the final before losing to Services football team 3–4 on penalties.
Then on 5 June 2013 it was reported that Anto, along with Wahid Sali, had signed with Mohun Bagan and thus return to the I-League for the 2013–14 season. However, on 24 June 2013, it was reported that Anto had been released from Mohun Bagan, less than 20 days after signing with the club on his second spell as the club could not afford his salary. He made no appearances with the club.
Then, on 20 July 2013, it was announced during a mega-electric gala at the Bangalore Football Stadium that Anto was a part of the new direct-entry club Bengaluru FC squad, which would participate in the 2013–14 I-League. He made his debut for Bengaluru in the club's first ever I-League match on 22 September 2013 against Mohun Bagan at the Bangalore Football Stadium, in which he came on as a substitute for Keegan Pereira in the 71st minute as Bengaluru drew the match 1–1. In his debut season with the club, he won the I-League, as the club was declared winner after defeating Dempo.
The 2015 season started well for Anto, as Bengaluru FC reached the finals of Federation Cup by defeating Sporting Clube de Goa three goals to nil in the semifinal. Bengaluru won the final 2–1, as they won their maiden Federation Cup title. Anto also featured in the AFC Champions League qualifying match against Johor Darul Ta'zim. Rino signed a 2-year extension to his contract with Bengaluru which would keep him at the club until the end of the 2016-17 season.
On 25 February 2015, new Indian coach Stephen Constantine included Anto in the shortlist of 32 players for World Cup qualifier match against Nepal. However, due to his injury, he failed to make it into the shortlist of 26 players when Constantine declared in early March.
Rino made his national team debut on 11 June 2015 against Oman in a Group D game of the 2018 World Cup qualifier in a 1-2 loss at home in Bengaluru.As of 31 May 2016
I-League (2): 2013–14, 2015—16
Federation Cup (1) : 2014–15, 2016-17