Earlier, Voot hosted the series. Since Voot has merged with JioCinema, you should now look on (free) for the same library.
Duryodhan cannot accept Yudhishthir as heir. Shakuni (Gandhari’s brother, nursing revenge against Bhishma’s clan) manipulates Duryodhan. Mahabharat 2013 Online All Episodes
For those looking to stream all episodes, the series is available on several major platforms: Earlier, Voot hosted the series