The demon, Bhaumāsura, having become very powerful, took by force the umbrella from the throne of the demigod Varuṇa. He also took the earrings of Aditi, the mother of the demigods. He conquered a portion of heavenly Mount Meru and occupied the portion which was known as Maṇi-parvata. The king of the heavenly planets, Indra, therefore came to Dvārakā to complain about Bhaumāsura before Lord Kṛṣṇa.
Hearing this complaint by Indra, the King of heaven, Lord Kṛṣṇa, accompanied by His wife Satyabhāmā, immediately started for the abode of Bhaumāsura. Both of them rode on the back of Garuḍa, who flew them to Prāgjyotiṣapura, the capital city of Bhaumāsura. It was not a very easy task to enter into the city of Prāgjyotiṣapura, because it was very well fortified. First of all, there were four formidable forts guarding the four directions of the city, and it was well-protected on all sides by formidable military strength. The next boundary was a water canal all around the city, and in addition the whole city was surrounded with electric wires. The next fortification was of anila, a gaseous substance. After this, there was a network of barbed wiring constructed by a demon of the name Mura. It appeared that the city was well-protected even in terms of today’s scientific advancements.
When Kṛṣṇa arrived, He broke all the forts to pieces by the strokes of His club, and the military strength scattered here and there by the constant onslaught of the arrows of Kṛṣṇa. With His celebrated Sudarśana-cakra He counteracted the electrified boundary; the channels of water and the gaseous boundary were made null and void, and He cut to pieces the electrified network fabricated by the demon Mura. By the vibration of His conchshell, He not only broke the hearts of great fighters, but also the fighting machines which were there. Similarly, the walls around the city were broken by His invincible club.
The vibration of His conchshell sounded like the thunderbolt at the time of the dissolution of the whole cosmic situation. The demon Mura heard the vibration of the conchshell, awakened from his sleep, and personally came out to see what had happened. He had five heads and had long been living within the water. The Mura demon was as brilliant as the sun at the time of the dissolution of the cosmic manifestation, and his temper was like blazing fire. The effulgence of his body was so dazzling that it was difficult to see him with open eyes. When he came out, he first of all took out his trident and began to rush the Supreme Personality of Godhead. The onslaught of the demon Mura was like a big snake attacking Garuḍa. His angry mood was very severe, and he appeared ready to devour the three worlds. First of all he attacked the carrier of Kṛṣṇa, Garuḍa, by whirling his trident and he began to vibrate sounds through his five faces like the roaring of a lion. The roaring produced by the vibration of his mouths spread all over the atmosphere until it extended not only all over the world, but also into outer space, up and down and out to the ten directions. In this way, the sound was rumbling throughout the whole universe.
Lord Kṛṣṇa saw that the trident of the Mura demon was gradually rushing toward His carrier, Garuḍa. Immediately, by a trick of His hand, He took two arrows and threw them toward the trident, cutting it to pieces. Simultaneously, using many arrows, He pierced the mouths of the demon Mura. When he saw himself outmaneuvered by the Supreme Personality of Godhead, the Mura demon immediately began to strike Him in great anger with his club. But Lord Kṛṣṇa, with His own club, broke the club of Mura to pieces before it could reach Him. The demon, bereft of his weapon, decided to attack Kṛṣṇa with his strong arms, but by the aid of His Sudarśana-cakra, Kṛṣṇa immediately separated the demon’s five heads from his body. The demon then fell into the water, just as the peak of a mountain falls into the ocean after being struck by the thunderbolt of Indra.
This demon Mura had seven sons, named Tāmra, Antarikṣa, Śravaṇa, Vibhāvasu, Vasu, Nabhasvān and Aruṇa. All of them became puffed up and vengeful because of the death of their father, and in order to retaliate, they prepared in great anger to fight with Kṛṣṇa. They equipped themselves with necessary weapons and situated Pīṭha, another demon, to act as commander in the battle. By the order of Bhaumāsura, all of them combinedly attacked Kṛṣṇa.
When they came before Lord Kṛṣṇa, they began to shower Him with many kinds of weapons, like swords, clubs, lances, arrows and tridents. But they did not know that the strength of the Supreme Personality of Godhead is unlimited and invincible. Kṛṣṇa, with His arrows, cut all the weapons of the men of Bhaumāsura into pieces, like grains. Kṛṣṇa then threw His weapons, and Bhaumāsura’s commander-in-chief, Pīṭha, along with his assistants, fell down, their military dress cut off and their heads, legs, arms and thighs severed. All of them were sent to the superintendent of death, Yamarāja.
Bhaumāsura was also known as Narakāsura, for he happened to be the son of the earth personified. When he saw that all his soldiers, commanders and fighters were killed on the battlefield by the strokes of the weapons of the Personality of Godhead, he became exceedingly angry at the Lord. He then came out of the city with a great number of elephants who had all been born and brought up on the seashore. All of them were highly intoxicated. When they came out, they saw that Lord Kṛṣṇa and His wife were beautifully situated high in outer space just like a blackish cloud about the sun, glittering with the light of electricity. The demon Bhaumāsura immediately released a weapon called Śataghnī, by which he could kill hundreds of warriors with one stroke, and simultaneously all his assistants also threw their respective weapons at the Supreme Personality of Godhead. Lord Kṛṣṇa began to counteract all these weapons by releasing His feathered arrows. The result of this fight was that all the soldiers and commanders of Bhaumāsura fell to the ground, their arms, legs and heads separated from their trunks, and all their horses and elephants also fell with them. In this way, all the weapons released by Bhaumāsura were cut to pieces by the reaction of the Lord’s arrows.
The Lord was fighting on the back of Garuḍa, and Garuḍa was also helping the Lord by striking the horses and the elephants with his wings and scratching their heads with his nails and sharpened beak. The elephants were feeling much pain by Garuḍa’s attack on them, and they were all dispersing from the battlefield. Bhaumāsura alone remained on the battlefield, and he engaged himself in fighting with Kṛṣṇa. He saw that Kṛṣṇa’s carrier, Garuḍa, was causing great disturbance to his soldiers and elephants, and in great anger he struck Garuḍa with all his strength, which defied the strength of the thunderbolt. Fortunately, Garuḍa was not an ordinary bird, and he felt the strokes given by Bhaumāsura just as a great elephant feels the impact of a garland of flowers.
Bhaumāsura thus came to see that none of his tricks would act upon Kṛṣṇa, and he became aware that all his attempts to kill Kṛṣṇa would be frustrated. Yet he attempted for the last time, taking a trident in his hand to strike Him. Kṛṣṇa was so dexterous that before Bhaumāsura could touch his trident, his head was cut off by the sharp Sudarśana-cakra. His head, illuminated by earrings and helmets, fell down on the battlefield. On the occasion of Bhaumāsura’s being killed by Lord Kṛṣṇa, all the demon’s relatives began to scream in disappointment, and the saintly persons began to glorify the chivalrous activities of the Lord. Taking this opportunity, the denizens of the heavenly planets began to shower flowers on the Lord.
At this time, the earth personified appeared before Lord Kṛṣṇa and greeted Him with a garland of vaijayantī jewels. She also returned the dazzling earrings of Aditi, bedecked with jewels and gold. She also returned the umbrella of Varuṇa, along with another valuable jewel, which she presented to Kṛṣṇa. After this, the earth personified began to offer her prayers to Kṛṣṇa, the Supreme Personality and master of the world, who is always worshiped by very exalted demigods.
Then He entered the palace of Bhaumāsura, which was equipped with all kinds of opulences. In the palace of Bhaumāsura Lord Kṛṣṇa saw 16,100 young princesses, who had been kidnapped and held captive there. When the princesses saw the Supreme Personality of Godhead, Kṛṣṇa, enter the palace, they immediately became captivated by the beauty of the Lord and prayed for His causeless mercy. Within their minds, they decided to accept Lord Kṛṣṇa as their husband without any hesitation. Each one of them began to pray to providence that Kṛṣṇa might become her husband. Sincerely and seriously, they offered their hearts to the lotus feet of Kṛṣṇa with an unalloyed devotional attitude. As the Supersoul in everyone’s heart, Kṛṣṇa could understand their uncontaminated desire, and He agreed to accept them as His wives. Thus, He arranged for suitable dresses and ornaments for them, and each of them, seated on a palanquin, was dispatched to Dvārakā City. Kṛṣṇa also collected unlimited wealth from the palace, along with chariots, horses, jewels and treasure. He took from the palace fifty white elephants, each with four tusks, and all of them were dispatched to Dvārakā.
After this incident, Lord Kṛṣṇa and Satyabhāmā entered Amarāvatī, the capital city of the heavenly planet, and they immediately entered the palace of King Indra and his wife, Śacīdevī, who welcomed them. Kṛṣṇa then presented Indra with the earrings of Aditi.
Later, Kṛṣṇa arranged to marry the 16,100 girls brought from the custody of Bhaumāsura. By expanding Himself in 16,100 forms, He simultaneously married them all in different palaces in one auspicious moment. He thus established the truth that Kṛṣṇa and no one else is the Supreme Personality of Godhead. All the palaces of the more than 16,000 queens of Kṛṣṇa were full with suitable gardens, furniture and other paraphernalia, of which there is no parallel in this world. There is no exaggeration in this story from Śrīmad-Bhāgavatam. The queens of Kṛṣṇa were all expansions of the goddess of fortune, Lakṣmījī. Kṛṣṇa used to live with them in different palaces, and He treated them in exactly the same way as an ordinary man treats his wife.
Ref >> Srila Prabhupada Vani.