Complex sentence: It was founded as C2 Workshop in 2003 by Ravi Pratap Singh and Srividya Kumar and after a decade they re-branded it as Learnnovators in 2013.
Split into simpler sentences: It was founded as C2 Workshop in 2003 by Ravi Pratap Singh and Srividya Kumar. After a decade they re-branded it as Learnnovators in 2013.