Blessed Mercury gives sharp intellect, effective speech, business skills, mathematics, logic and humor — such people are clever and versatile. Weak or afflicted Mercury gives speech defects, skin diseases, confusion in judgment, nervous weakness and loss of business. Mercury is considered to be exalted in Virgo and strong in Gemini.
To give strength to Mercury, Wednesday fasting, chanting 'Om Budhaya Namah', worshiping Vishnu/Ganesha and Vidya-dan (book/education) are the best. The gemstone emerald is worn in gold/silver, in junior, on Wednesday. Donation of green things (moong, green clothes), help to girls/students and regular study are especially beneficial.
Detailed article on Mercury · All nine grahas · See this planet in your kundali · Mercury across houses and signs — result pages
Mercury carries intellect, speech and trade in a chart. Its actual result depends on the house it sits in, the sign it occupies, the dashas it runs and the aspects it casts — each has its own detailed page below.
In the 12 houses: 1 · 2 · 3 · 4 · 5 · 6 · 7 · 8 · 9 · 10 · 11 · 12
In the 12 signs: Aries · Taurus · Gemini · Cancer · Virgo · Libra · Scorpio · Sagittarius · Capricorn · Aquarius · Pisces
Dasha periods: Mercury Mahadasha (full guide) · -Ketu · -Venus · -Sun · -Moon · -Mars · -Rahu · -Jupiter · -Saturn · -Mercury
Aspects and conjunctions: Mercury's aspects · Mercury–Jupiter · Mercury–Ketu · Mercury–Rahu · Mercury–Saturn · Mercury–Venus · Moon–Mercury · Mars–Mercury · Sun–Mercury
Its nakshatras (Vimshottari lord): Ashlesha · Jyeshtha · Revati
Transit, article and remedies: Mercury in today's gochar · Detailed article · Remedies · See this planet in your own kundali