the original steering column will break off and crush itself when the body firewall is pushed in, It uses nylon rivets for this purpose and is mentioned in every service manual to never hit the column or threaded shaft with a hammer as it can collapse it. The design also incorporates the angle of the column.
If it does not break the entire column along with steering will come inwards in a crash and crush your ribs and neck killing you.
When you choose to do a jugaarbaazi setup like an Alto EPS into a corolla - you took out every aspect of safety.
The column is like a rod inside a pipe, the rods are riveted together, when the crash happens it forces the column inside - as it is tightened to the body the rivets break and the can now become shorter.
Even the old VW beetle had it - in that car the breakaway part is like a diamond shaped fence piece made of cast material that was very brittle. It is also standard insurance practice around the world never to repair or work on a steering column. It is always replaced with a brand new factory part.