Rule 8 is the strongest of the ten, cancelling 35 points. Classical verses name five specific sign-and-house combinations in which the dosha is held not to apply: Aries in the 1st, Scorpio in the 4th, Capricorn in the 7th, Cancer in the 8th, and Sagittarius in the 12th.
This page covers how rule 8 is evaluated, what it is worth, the cases where it interacts with other rules, and a worked example with the actual arithmetic.
How is rule 8 evaluated?
All five carry equal weight at 35 points, which is how the verses state them. The houses are counted from the Ascendant.
| Mars in | House | Ascendant this forces | What else it restates |
|---|---|---|---|
| Aries | 1st | Aries | Own sign |
| Scorpio | 4th | Leo | Own sign, and Yogakaraka |
| Capricorn | 7th | Cancer | Exalted, and Yogakaraka |
| Cancer | 8th | Sagittarius | Debilitated |
| Sagittarius | 12th | Capricorn | Nothing |
The right-hand column is the whole reason this rule supersedes others rather than stacking with them.
Why does rule 8 supersede rules 1, 2, 3 and 7?
Because in four of the five cases the exception already names a dignity that another rule scores, and in two cases it also fixes an Ascendant that rule 7 scores. Those are restatements, not independent protections.
Left uncorrected, the five exceptions scored 35, 35, 45, 65 and 75 — making Sagittarius-12th, a genuine classical exception, look half as protective as Scorpio-4th for no reason found in any text. All five now score 35.
Why is Sagittarius-12th the cleanest of the five?
Because it restates nothing. Sagittarius is merely a friendly sign for Mars, covered by no dignity rule, and the Ascendant it implies (Capricorn) is not a Yogakaraka Ascendant. It is the only one of the five that cannot be double-counted, which makes it a useful test of whether any calculator handles this rule correctly.
What does rule 8 do to a real score?
Mars in Capricorn in the 7th house, which forces a Cancer Ascendant.
| Rule | Status | Points |
|---|---|---|
| 8 — Capricorn in the 7th | Applies | 35 |
| 2 — Mars exalted in Capricorn | Present, absorbed | 0 |
| 7 — Yogakaraka for Cancer Ascendant | Present, absorbed | 0 |
| Total | 35% |
The 7th house raw figure from the Ascendant is 44.4, so 35% cancellation leaves a net 43 — the Mild band. A calculator that adds all three rules reports 65% and a net of 16, which is a materially different verdict from the same chart.
What should you know before relying on this rule?
Rules 8 and 9 are evaluated from the Ascendant only. Both depend on which house Mars occupies counted from the Lagna, so if your dosha comes from the Moon or Venus reference alone, neither rule can be evaluated for your chart.
Your report states this explicitly rather than showing the rules as simply not applying — a rule that could not be tested and a rule that was tested and failed are different situations, and conflating them would misrepresent the analysis.
Rule 10 is not absorbed. The Navamsa position varies with Mars’s degree within the same sign, so it is genuinely independent information about a second chart.
How does rule 8 compare with the other nine?
Rule 8 carries 35 of the 100 points available across the ten rules, and cancellation is capped at 85% in total — classical tradition treats a dosha as mitigated rather than erased, so no chart reaches zero.
The rules most worth reading alongside this one:
- Rule 7 — Yogakaraka — read the rule
- Rule 1 — own sign — read the rule
- Rule 9 — Mercury 2nd — read the rule
The complete ten-rule reference sets all of them out together with their weights and sources.
Frequently asked questions
What are the five sign-house exceptions? Mars in Aries in the 1st, Scorpio in the 4th, Capricorn in the 7th, Cancer in the 8th, and Sagittarius in the 12th.
Do all five score the same? Yes — 35 points each, which is how the classical verses weight them.
Why does rule 8 cancel other rules? Because those rules restate the same placement rather than adding independent protection. Counting both credits one fact twice.
Are the exceptions counted from the Moon or Venus? No. They are evaluated from the Ascendant only, and your report says so when that limits the analysis.
Which exception is strongest? None — all five are equal at 35. If a calculator ranks them differently, it is stacking rules it should be absorbing.
Does rule 8 remove the dosha entirely? No. It is the strongest single rule but cancellation is capped at 85% overall, and 35 alone leaves most of the raw score intact.
Where to go next
To see which of the ten rules actually fire on your chart rather than reading them in the abstract, run the cancellation calculator — it reports every rule tested, including those that did not apply and those that could not be evaluated. Our methodology documents how the weights are derived and where our scoring decisions depart from classical instruction.