A rectification deed should be executed 
after mutual consent of all the parties to the 
main deed. All parties to the original deed 
should jointly execute the rectification deed as well.

2) then passbook should be rectified 

3) you can request RDO to cancel passbook as incorrect survey numbers are mentioned 

You can go for rectification of the same before rdo

B has got no interest or rights in A's property until and unless his own property is affected by such erroneous survey numbers as appearing in the Pattdhar passbook. 

it is for the A to get a registered rectification deed rectifying the erroneous survey number appearing in the registered title deed as well as in his patta. 

For that he first has to get his property surveyed by the government surveyor  and ascertain the facts as well as correct survey number as per his registered title document to that of the pattadhar passbook issued to him and then approach the seller to execute the rectification deed. 

If the mistake is with the revenue department then he can apply for correction in the revenue records and to issue a rectified patta as well. 

A rectification deed must be meticulously executed following the unanimous agreement of all parties involved in the main deed. It is imperative that all the original deed's signatories collectively participate in the execution of the rectification deed as well, reaffirming their mutual consent.

Subsequently, the passbook associated with the deed should undergo rectification. This step is essential to ensure that the passbook accurately reflects the corrected details as per the rectification deed.

To address the issue of incorrect survey numbers mentioned in the passbook, you have the option to formally request the Revenue Divisional Officer (RDO) for the passbook's cancellation. This course of action is necessary to rectify the discrepancies and inaccuracies present. By doing so, you can facilitate the rewriting of the passbook with the accurate survey numbers, thereby aligning it with the corrected information provided in the rectification deed.

Sale  deed is valid 

mere mistake in schedule does not invalidate sale deed 

The sale deed consists of schedule of properties too.

The schedule of property will identify the property only by its boundaries.

If the boundaries of the property are incorrect then the property itself is in  doubt.

Hence it is pertinent to rectify the errors wherever it occurs in the sale deed. 

It’s valid document

1) VALID 

2) B cannot approach, A has to approach

Dear Client,

In your case, the land survey number in the sale deed and the pattadar passbook are correct. However, the survey numbers mentioned in the schedule property boundaries are incorrect. This could make the deed invalid if the incorrect survey numbers are material to the description of the property.

For example, if the sale deed describes the property as a plot with survey number 1234, but the schedule property boundaries show that the plot actually has survey number 5678, then the deed could be considered invalid. This is because the buyer would not be getting the property that they bargained for.

However, if the incorrect survey numbers are not material to the description of the property, then the deed may still be valid. For example, if the sale deed describes the property as a plot of land in a particular village, but the schedule property boundaries show that the plot is actually located in a different part of the village, then the deed may still be valid. This is because the buyer would still be getting the property that they bargained for, even though the exact location of the property is different.

Ultimately, the validity of the sale deed will depend on the specific facts and circumstances of the case.