There is also a tendency to focus exclusively on Bhagavad Gita, and suggest that there is not much worthy in the epic besides Gita
But to give in to these tendencies is to do gross injustice to the epic
But it is also a text that is central to Hindu religion
And no I am not just referring to the Gita
But several other parts of the epic do have doctrinal significance in modern Hinduism
Shanti Parva - a book that by itself includes over 350 chapters. This parva is very central to understanding "Dharma"
With three sections on -
Raja dharma - conduct of kings
Apad Dharma - conduct in adversity
Moksha Dharma - on how to achieve Moksha
A sub-book with over 150 chapters much of which is again dedicated to politics and conduct of the state.
Vishnu Sahasranama is likely the most widely recited Sanskrit text in India today. Hundreds of thousands listen to it everyday
Harivamsha is the earliest account of Vasudeva Krishna that has come down to us. An invaluable religious text containing much information on Yadava lineage and Krishna's life
Among these Sanatsujatiya is widely regarded as a philosophical classic - it was commented upon by Adi Sankara himself in the 8th century
A text that features in the Ashwamedhika Parva, following the Kurukshetra war, and the coronation of Yudhishtira
Like the Gita, the Anugita also takes the form of a dialogue between Krishna and Arjuna
Here's a blog on the same
sreenivasaraos.com/2012/09/06/anu…
A very important section that contains much insight on pravritti dharma and nivritti Dharma (the path of action and the path of inward contemplation)
pancharAtrasya vaktA tu nArAyaNaM svayaM
A reconciliation central to development of Sri Vaishnavism in later times
Here's a v useful post on Ramopakhyana
manasataramgini.wordpress.com/2016/08/12/som…
Kalidasa's Abhjnana Shakuntaklam
Bhasa's Urubhanga, Duta Ghattotkacha, and Madhyama vyayoga
Magha's Shishupala Vadha
Bharavi's Kiratarjuniya
So Mahabharata's impact on the evolution of Sanskrit literature has been immense
Though that battle alone is sufficient to make it an immortal classic
There is much more to it.
So is its influence on later Sanskrit literature, later folklore, and also Indian art
A history of the Kuru dynasty - the first Indian state in many ways, as acknowledged by even Michael Witzel below -
michaelwitzel.org/wp-content/upl…
After all we live in Bharatavarsha - the land of the Kuru kings