What are the different senses in which 'Secularism' has been understood in India?

There are different senses in which Secularism' has been understood in India:

1. In the western context, it is a doctrine by which the state is kept strictly separate from religion. It means separation of 'Church and State' as we find in western societies.
2. In terms of Indian sense, which also covers western as well, being a secular means an opposite of communal.
3. It does not favour any particular religion over others, In this sense, it is the opposite of religious Chauvinism and need not necessarily imply hostility to religion as such.
4. In terms of the state-religion relationship, this sense of secularism implies equal respect for all religions, rather than separation or distancing. For example, the secular Indian state declares public holidays to mark the festivals of all religions.