narada

source : mahabharata ( sabha parva.ch V )

we already know who narada is and what was his job but little we know anything about his accomplishments and siddhis .

It is been mentioned in the mahabharata

Vaisampayana-said, ''While the illustrious Pandavas were seated in that Sabha

 along with the principal Qandharvas, there came, O Bharata, unto that assembly 

the celestial Rishi Narada,

 conversant with the Vedas and Upanishadas, worshipped by the celestials acquainted with

histories and Puranas, well-versed in all that occured in ancient kalpas (cyles), conversant with

 Nyaya (logic) and the truth of moral science, possessing a complete knowledge of the six Angas

 (viz., pronunciation, grammar, prosody, explanation of basic terms, description of religious

rites, and astronomy and astrology). 

He was a perfect master in reconciling contradictory texts and differentiating in

 applying general principles to particular cases, as also in interpreting contraries by reference to

differences in situation, eloquent, resolute, intelligent, possessed of powerful memory. 

He was acquainted with the science of morals and politics, learned, proficient in 

distinguishing inferior things from superior ones, skilled in drawing inference

 from evidence, competent to judge of the correctness or incorrectness of syllogistic 

statements consisting of five propositions.

 He was capable of answering successively brihaspati himself while arguing, with definite conclusions

 properly framed about religion, wealth, pleasure and salvation, of great soul and beholding this

whole universe, above, below, and around, as if it were present before his eyes. 

He was master of both the Sankhya and Yoga systems of philosophy, ever desirous of humbling 

the celestials and Asuras by fomenting quarrels among them, conversant with the sciences of war and treaty, 

proficient in drawing conclusions by judging of things not within direct ken, as also 

in the six sciences of treaty, war, military campaigns, maintainence of posts against the enemy

 and stratagems by ambuscades and reserves. 

He was a thorough master of every branch of learning, fond of war and music, incapable of being repulsed by any

science or any course of action, and possessed of these and numberless other accomplishments.