Parashuraam Jee is said to be the incarnation of Vishnu and is immortal. He was in the lineage of Pururavaa and Urvashee. He was the son of Raajaa Gaadhi. Gaadhi had a daughter named Satyavatee who was married to Richeek Muni. When Richeek Muni asked for Satyavatee from Gaadhi, he thought that Richeek Muni was not a worthy husband for her, so he said to him - "We are of Kushik Vansh, we are difficult for you, so bring 1,000 horses whose one ear is white and another one is black as fees". Richeek Muni understood, so he brought such horses from Varun and married Satyavatee.

Once both Satyavatee and her mother asked Muni Richeek to give them sons. So Richeek Muni prepared Charu (Kheer type sweets) for both of them separately. Satyavatee's mother thought that Satyavatee's Charu should be better than hers, so she asked her daughter to give her own Charu to her. Satyavatee gave her own Charu to her mother and she herself ate her mother's Charu.

When Muni Richeek heard about this, he said to Satyavatee - "You have done a great harm. Now your son will punish the people, and your brother will be a Brahmvettaa (knower of Brahm)." Satyavatee got scared and tried to please her husband, then he said - "OK, then your grandson will be like that not your son." When the time came Satyavatee gave birth to Rishi Jamdagni.

Now there was a Rishi Renu whose daughter was Renukaa. He married his daughter to Jamdagni Rishi. She had several sons from Jamdagni, the youngest one was Parashuraam. His glory is famous. It is said that Bhagvaan Himself took Ansh (part) Avataar to end Haihaya Vansh in the form of Parashuraam. He emptied Prithvi from Kashatriya 21 times.

Among his disciples are Pitaamah Bheeshm, Drone and Karn. 

Bheeshm
When Bheeshm abducted Kaashee's three princesses to marry to Vichitraveerya, his half brother, the eldest one Ambaa didn't want to marry him. She wanted to marry Shaalv Kumaar. Although Bheeshm sent her back to Shaalv Kumaar with all respects but still he did not accept her. So she demanded justice from the king of Hastinaapur, that "when I was abducted, I had Var Maalaa in my hands, I had the choice to choose my husband, now I choose Bheeshm to marry me". But Bheeshm said - "I made it clear there only that I did not go there to marry myself, I went there to marry my brother. Secondly everybody knows that I have taken vow not to marry lifelong. So I cannot marry her." 

Then Ambaa wanted to take revenge of her insult. She went to Parashuraam as he was Bheeshm's Guru, and he would not disobey his Guru. But Bheeshm did so. At this Parashuraam challenged him for a dual fight. The fight lasted for several days. In the end Brahmaa Jee had to intervene to stop that.

Drone
When Drone could not get any means of living after his education, and he found his wife Kripee struggling even with the food for his child Ashwatthaamaa, he went out to bring a cow for his son. He heard that Parashuraam was leaving for Sanyaas and he was distributing his wealth, including Prithvi,  he went to him with the hope to get something from him. But when he arrived there, he found that he was already late. He had already donated everything. But when he saw Drone, he did not consider proper to disappoint him, so he said - "If you are interested I can teach you the use of some weapons and some tactics of warfare." Drone got ready to learn that so he taught him the use of several weapons and many tips of warfare. Soon Drone became the master of military arts.

Karn
Karn was also a disciple of Parashuraam. Karn's father Adhirath went to Drone to get his son educated as he was showing interest in archery etc. But Drone refused to teach him saying that "You are a Soot-Putra, I do not teach them." Karn got very disappointed hearing this then he went to Parashuraam Jee and lied there that he was a Braahman. Then only he could learn from him. Parashuraam Jee was very happy with the progress of his disciple, so when Karn's education was over, he did not ask Guru Dakshinaa from him, but one day...

Once Parashuraam Jee was sleeping keeping his head in Karn's lap that a scorpion crawled up Karn's body and started stinging him. But Karn didn't move. Scorpion's stings made his body bled, but still he didn't move at all. When Parashuraam Jee woke up, he found Karn's body bleeding. He asked him what had happened. Karn told him everything. He said - "You cannot be a Braahman, you must be a Kshatriya, because Braahman cannot have such tolerance. It is only Kshatriya who has this much tolerance. Tell me the truth, who are you? And why did you tell lie to me?" Karn got silent first then he said - "I am Soot-Putra."  Parashuraam Jee was vry angry at this, so he said - "You have taken the knowledge by lying. This type of education is not useful, so Whatever knowledge you have gained from me, you will not remember it when you need it most." And he went away.

When Karn wanted to use the knowledge learned from Parashuraam on Arjun to kill him he forgot it.