Wrong date on database (British India Coin)

The following coin has all the information right except the year of the coin.

https://en.numista.com/catalogue/pieces22954.html


The coin belongs to Shah Alam 2nd who's regime started from 1759 till 1806. So its impossible that the coin is from 1829. Please see the reference-

http://en.wikipedia.org/wiki/Shah_Alam_II

As per the coin 37th year of the Shah Alam is 1797 so it should be the actual date.

What you say makes sense, I was the one that entered both KM 56 and KM 57 into the database and I got the date from this report of a Baldwin's auction. Will check into it a little bit more. Thanks for bringing it up

http://www.mcsearch.info/record.html?id=99574

http://www.mcsearch.info/record.html?id=99576

Also has the same date, 1829 in Numismaster for KM 56. Probably the British continued to strike these coins with the frozen date long after Shah Alam II died in 1806...
http://secure.numismaster.com/ta/Coins.admin?rnd=AYFEJKMT&;@impl=coins.ui.ucatalog.flat.coin.UiControl_FindResults&@prms=536561726368547970653d31&@windowId=DGVUT&Origin=3&AdvanceSearch=0&PRefine=&Country=India-British%20%5C%20Bengal%20Presidency&Denom=Pice&CountryId=955&DenomId=4138&KM=56&Comp=&Date=

Please let us know if you find any more info..