Performing Bhima Ratha Shanti involves the following steps:

1. Planning and Preparations: The children, grandchildren, and younger siblings or relatives of the individual turning 70 come together to organize the ceremony. Select a suitable date, time, and venue for the celebration. Make arrangements for the necessary materials and items required for the rituals.

2. Rituals and Prayers: Begin the ceremony by performing special rituals and prayers. Seek the blessings of deities and ancestors for the individual's well-being, good health, and longevity. Offer flowers, fruits, incense, and other sacred items as offerings during the rituals.

3. Honoring and Celebrating: Show love, respect, and gratitude towards the individual reaching this milestone. Share speeches, stories, and anecdotes highlighting their accomplishments, wisdom, and contributions. Present them with gifts, blessings, and heartfelt wishes for a continued joyful and fulfilling life.

4. Community Engagement: Consider involving the wider community by inviting friends, relatives, and well-wishers to join in the celebration. Arrange for a feast or meal where everyone can come together and enjoy the festivities.

It is important to note that specific rituals and practices of Bhima Ratha Shanti may vary based on regional customs, cultural traditions, and family preferences. Consulting with a priest or individuals experienced in conducting such ceremonies will provide more accurate guidance and instructions based on your specific cultural and religious background.