What Is Budh Ka Rahasya in Lal Kitab?

Mercury, or Budh, is often associated with intelligence, communication, calculation, business sense and decision-making. But in the Lal Kitab method discussed here, there is another question to ask:

What if Mercury is not acting completely like Mercury?

This is where Budh Ka Bhed (Budh Ka Rahasya) becomes important.

In simple words, Budh Ka Rahasya means finding the planetary form or influence through which Mercury is operating in a horoscope. It is not simply about whether Mercury is strong or weak. The calculation tries to identify which planet's nature Mercury is carrying.

Think of it like this.

Two people may both be intelligent. One uses intelligence to negotiate, another uses it to lead, another uses it to calculate money, while another becomes highly action-oriented. Their Mercury may express itself differently.

According to the method in the provided Lal Kitab material, finding Budh Ka Bhed helps decode this hidden layer.

When Is Budh Ka Bhed Calculated?

The method specifies Budh Ka Bhed particularly when:

• Mercury is sitting alone.

• Jupiter is weak or afflicted.

• Mercury itself is weak or afflicted.

• Mercury is placed in the 9th house.

The 9th-house rule is specifically highlighted because the 9th house is not clearly included in the referenced “Parrot's 35 Formula,” so Mercury's Bhed is calculated separately in this situation.

The Fixed Planetary Power Table

The first thing you need is the fixed planetary Power chart used in this calculation.

Planet	Power
Jupiter	6
Sun	9
Moon	8
Venus	7
Mars	5
Mercury	4
Saturn	3
Rahu	2
Ketu	1

This Power does not change from horoscope to horoscope in the method presented in the PPT.

How to Calculate Budh Ka Rahasya: Step by Step

Step 1: Note the Power of Every Planet

Take the fixed Power table above.

For example:

Mars = 5
Mercury = 4
Sun = 9

Step 2: Note Each Planet's House Placement

Now take the horoscope according to the Lal Kitab house system and note where all nine planets are placed.

Step 3: Multiply House Placement × Planetary Power

For every planet:

House Placement × Planet's Power = Calculated Value

For example, if Jupiter is in the 3rd house:

3 × 6 = 18

Repeat this for all nine planets.

Step 4: Add All Nine Values

Add the calculated values to get the Grand Total.

Step 5: Divide the Grand Total by 9

The Grand Total is divided by 9, because nine planets are included in the calculation.

Step 6: Check the Remainder — This Is the Key

The most important part is not the quotient but the remainder.

The remainder indicates the planetary form or influence that Mercury is carrying.

Remainder → Budh's Secret Form

Remainder	Mercury's Secret Form
1	Ketu
2	Rahu
3	Saturn
4	Mercury
5	Mars
6	Jupiter
7	Venus
8	Moon
0	Special Rule: Check 5th House

For remainder 0, do not directly assign the Sun. The method requires you to check the 5th house. If there is no planet there, Sun becomes the form of Mercury. If multiple planets are present, select the planet with the highest Power.

Real Calculation Example from the PPT

The example horoscope in the material gives these house placements:

Planet	Power	House	Power × House
Jupiter	6	3	18
Sun	9	6	54
Moon	8	12	96
Venus	7	6	42
Mars	5	6	30
Mercury	4	6	24
Saturn	3	10	30
Rahu	2	2	4
Ketu	1	8	8
Grand Total			306

The PPT then calculates:

306 ÷ 9 = 34 remainder 0

So, because the remainder is 0, the 5th house is checked. In the example, the result given is:

Sun is the secret form of Mercury.

This is the central idea of Budh Ka Rahasya: calculate the planetary values, find the remainder, and then decode which planetary influence Mercury is carrying.

Why Does This Matter in Practical Astrology?

Suppose someone's Mercury is connected with business, communication or decision-making, but their actual approach is unusually bold, competitive and action-oriented. Instead of looking only at Mercury's basic placement, Budh Ka Bhed gives another layer to investigate.

The secret form may help an astrologer understand why Mercury is expressing itself in a particular planetary style.

That is why Budh Ka Rahasya is less about asking “Is my Mercury good or bad?” and more about asking:

“What planetary energy is Mercury actually carrying in this horoscope?”

And that is the real secret behind Budh Ka Bhed in this Lal Kitab calculation method.