Who was the strongest Warrior in Hindu Mythology

So, who was the strongest warrior, some people might say, Lord Ram, Lord Parshuram and Lord Hanuman, but the strongest warrior was Meghanadh, yes the son of Ravan. He was trained by Shukracharya(The guru of Asuras) and he possessed each every celestial weapon, he was the only warrior to possess the three most powerful celestial weapons The Vaishnavastra, The Pashupatastra, and The Brahmastra. On top of that, he had a boon from Brahma that before going to war if he performed a Yagna of his native goddess Prathyangira and completed it, It would impossible for anyone to kill him on the battlefield and become invulnerable.

     Meghanadh during the Devasura Sangram(Battle between Deva and Asur) captured Indra tied him to his chariot and dragged him to his father the Asura King Ravan. Meghanadh decided to kill Indra, but Lord Brahma Intervened and asked Meghandh to free Indra. Meghanadh agreed and freed Indra. Meghanadh obliged and was granted a chance to ask a boon, the one I have just mentioned above. Highly Impressed by his valor Brahma coined him the name "Indrajit"("The Conqueror of Indra").  

Did You Know Lord Krishna Had A Lookalike

Lord Krishna who was guiding The Pandavas to the Path of Dharma, on the other hand, there was a king name Paundrak from the Kingdom of Pundra who was an imposter of Lord Krishna and an ally of Jarasandh The King of Magadh. Jarasandh and Paundrak both had enmity with Krishna and always wanted vengeance from Vasudev Krishna. He imitated the attire of Lord Krishna and always claimed that the Sudarshana chakra was his and that Lord Krishna had stolen from him. Later he was killed by Lord Krishna for his sins.  

How did the greatest archer Arjuna got killed by his own Son

Uloopi Restoring Arjuna's Life through
the Nag Mani.

Arjuna married Chitrangada the princess of Manipur during his exile and they both had a son named Babruvahana, but Arjuna had to leave her wife and newborn son back to Manipur because Chitrangada's father The King Of Manipur did not have a son whom he could announce as his Crown Prince, so he took an oath from Arjuna that Babruvahana would not fight in the holy war to ensure that Manipur didn't loose its only Prince in the war.
    After The Holy War of Mahabharata Yudhishthir was crowned as the King of Aryavarta (Present-day India). 

He conducted Ahsvamedh Yagna, Where a decorated horse would be sent across the kingdom and wherever it goes unopposed, the land would be acquired by the king who sent it. 

    When Arjuna went to Manipura with the wandering sacrificial horse of the Ashvamedh, Babruvahana captured the horse, which, by tradition, meant war against the Pandavas. Arjuna tried to persuade Babruvahana to leave the horse as there was no enmity between Manipura and Hastinapura. Babruvahana agreed but with one condition that he would like to defeat Arjuna in a battle duel for his Guru Dakshina.  Arjuna, reluctant to fight a young boy, left and informed a small troop of his army to convince Babruvahana to return the horse . Babruvahana defeated the army. He also defeated Bheema. Arjuna got enraged and got in a battle with Babruvahana. Babruvahana killed his father Arjuna with an arrow, a boon given to him by Ganga, Bhishma's mother. When Babruvahan came to know the Warrior whom he had just killed was his own Father, after knowing this Babruvahana was determined to kill himself, but he was intervened from his stepmother, the Naga princess Uloopi, a gem called Nagamani which restored Arjuna to life with the help of Krishna. Arjuna couldn't believe that his Son was such a fierce warrior and at the same moment, he was pride too. Arjuna admired Babruvahana's skill in war. Then, the Pandavas, Uloopi, Chitrangada, Babruvahana, and the armies returned to Hastinapur.

The True Story about Sita's Agni Pariksha

Though being an avatar of Lord Vishnu, it was a herculean task for Lord Ram to defeat the Trilokpati (conqueror of the universe), Ravan. After defeating Ravan, Lord Ram along with his colleagues and close associates went to Ashok Vatika to bring back Sita. Sita was all ready to see her husband after such an eternity. Instead of being cheerful Lord Ram was in a dilemma, Sita ready to grasp the warmth of her husband, Lord Ram intervened and stopped Sita. Everyone in the surrounding went dumbstruck even Laxman could not understand what had just happened. Lord Ram in public announced that Sita has to give Agni Pariksha (Fire test) then only he would accept her. Sita was as calm as she knew this was gonna happen. Laxman for the first time in his life was furious at his elder brother whom he considered as his god. Laxman in a melancholic voice asked what the hell was going inside his bother's mind and that he didn't trust the purity of Goddess Sita, whom Laxman considered as his mother. 

The story that very few people know about Agni Pariksha

Ram explained his brother, Rama knew that Ravana would change form and abduct Sita. Therefore, he had informed Sita in this regard. Both started this Leela. Accordingly, the real Sita was handed over to Agni dev(deity) and a promise was taken that Sita would be withdrawn from Agni only after the slaying of Ravana. Sita's shadow, in turn, will lead Lankesh (Ravan) to the reflection. So did happen. The entire time in Lanka was her shadow, not the actual Sita.

Laxman was sorry for doubting his brother's decision, Laxman produced fire at the behest of Shri Ram. Sita Mata was called upon to go through it. She passed through the fire, and a few moments later the Agni Deity appeared. Real Sita Mata was direct with him. Thus Sita Mata came back to Shri Ram. Seeing this scene, the entire Vanara Sena including Laxman, Hanuman, Sugriva, Angad, Jamwant became emotional.