The correct answer is: Equal treatment of all religions by the state.
Secularism is the principle of separation of government and religion. It means that the state does not endorse or promote any particular religion, and that all religions are treated equally under the law. This principle is enshrined in the Indian Constitution, which states that “No person shall be compelled to pay any taxes, the proceeds of which are specifically appropriated in payment of expenses for the promotion or maintenance of any particular religion or religious denomination.”
The other options are incorrect because they do not accurately reflect the principle of secularism. Option A is incorrect because it suggests that the state should promote one particular religion. Option B is incorrect because it suggests that the state should prohibit religious practices. Option C is incorrect because it suggests that there should be complete separation of religion and state.
Secularism is an important principle in India because it helps to ensure religious freedom and equality for all citizens. It also helps to prevent religious conflict and promote social harmony.