I could not come up with any better title, after reading the question you can suggest a better one. Also you can suggest some better tags, I could not find web-development.
I am a student so I don't know the standard way to achieve the following issue.
I usually set the IDs of elements (div,span,tr,etc) according to the database primary key to reference it later easily.
For example on page having some rows of entries having their id set to the sno in the DB which is primary key and on click on any row checking the id and display the result from database using that id.
But I think its a bad idea as anyone can use Inspect Element or Dev Tools and change the ID.
What is the standard way to achieve this?
EDIT 1
I know that web browser wont enforce the security policy for me that's why I am asking for the standard way, or standard practices to use for this matter.
Anyway, you must assume that any request that comes to the back end may be forged, any any data sent to browser (visible or hidden) is public.
If you considere the the id are private (rather uncommon requirement), you could instead simply use a row order and keep on server session a table row_order <-> id.
If you simply want to ensure that the id are correct, just control them (server side) before updating the database, or at the time of the database write if you cannot control them before.
If you want to enforce any other policy (users have roles and depending on roles are allowed or not to update some values) all those controls have to be done server side.