The most suitable option to understand online puja services would be (1) Modernisation.

Modernisation refers to the process of adopting modern methods, practices, and technologies in various aspects of life, including cultural and religious practices. Online puja services represent the modernization of traditional religious rituals and ceremonies by making them accessible through digital platforms. These services allow individuals to perform religious rituals, offer prayers, and seek blessings online, eliminating the need for physical presence in a temple or religious space.

While globalization and secularization may also play a role in the availability and popularity of online puja services, modernization is the most relevant option in this context. Westernisation, on the other hand, refers specifically to the adoption of Western culture and values, which may not directly apply to online puja services.