Antardasha 4 of 9 in Rahu mahadasha · 2 yrs 6 mo
Rahu-Mercury antardasha राहु-बुध अंतर्दशा
Rahu-Mercury lasts about two years, six months, and eighteen days. Mercury is a friend of Saturn, and thus of Rahu, and the relationship is returned, so tradition reads this as one of the cleverest stretches of the period. Commerce, technology, communication, and foreign trade prosper; skill in negotiation and systems is heightened. The cautions are cunning that turns into dishonesty, nervous strain, and speculation. Contracts should be read carefully.
- Length
- 2 yrs 6 mo
- Position
- 4 of 9 in Rahu
- Natural relation
- Rahu is friend to Mercury
The mahadasha behind it
Rahu mahadasha is an eighteen year period that tradition associates with ambition, unconventional paths, foreign lands, and the hunger for what one does not yet have. After the direct Mars period it feels more complicated and less predictable. Classical texts read a well-placed Rahu as bringing worldly rise by unusual routes, and an afflicted Rahu as bringing confusion, deception, and dissatisfaction despite gains. Read the full Rahu mahadasha.
What Mercury adds as sub-lord
Mercury mahadasha is a seventeen year period that tradition associates with intellect, communication, commerce, learning, and adaptability. After the heavy Saturn period it feels lighter, quicker, and more social. Classical texts read a strong Mercury as bringing success in trade, writing, and study, and a wide network of useful contacts, while a weak or afflicted Mercury brings nervous strain, scattered effort, and losses through miscommunication. As an antardasha lord it colours the mahadasha's agenda rather than replacing it: the houses Mercury owns and occupies in the birth chart become the stage for Rahu's themes for 2 yrs 6 mo. See Mercury as a mahadasha.
How the length is computed
Rahu runs 18 years and Mercury runs 17 years in the 120-year cycle, so Rahu-Mercury lasts 18 × 17 ÷ 120 = 2.550 years, about 2 yrs 6 mo. The exact calendar boundaries depend on the Moon's degree at birth; the free kundli lists them.