Explanation:

Members of parliament other than ministers are called private members and bills presented by them are known as private member's bills
Bills introduced in the Parliament are of two kinds: public bills and private bills (also known as government bills and private members’ bills respectively). Though both are governed by the same general procedure and pass through the same stages in the House, they differ in various respects
Public Bill
•It is introduced in the Parliament by a minister.
•It reflects of the policies of the government (ruling party).
•It has greater chance to be approved by the Parliament.
•Its rejection by the House amounts to the expression of want of parliamentary confidence in the government and may lead to its resignation.
•Its introduction in the House requires seven days’ notice.
•It is drafted by the concerned department in consultation with the law department.
Private Bill
•It is introduced by any Member of Parliament other than a minister.
•It reflects the stand of opposition party on public matter.
•It has lesser chance to be approved by the Parliament.
•Its rejection by the House has no implication on the parliamentary confidence in the government or its resignation.
•Its introduction in the House requires one month’s notice.
•Its drafting is the responsibility of the member concerned.
Do you know?
The bills introduced in the Parliament can also be classified into four categories:
•Ordinary bills, which are concerned with any matter other than financial subjects.
•Money bills, which are concerned with the financial matters like taxation, public expenditure, etc.
•Financial bills, which are also concerned with financial matters (but are different from money bills).
•Constitution amendment bills, which are concerned with the amendment of the provisions of the Constitution