I’m not finding any reliable, verifiable information about Mehulabai Mahasatiji of the Ajramar Jain Sampraday or about who her Gurudev (Dīkshā-guru) is.

Because this is a very specific, recent/person‑level detail, it is usually preserved in:

• The records of the Limbdi Ajramar Gadi / Ajramar Sampraday
• Local Sangh announcements, pattavali (lineage lists), or dīkshā programs
• People who personally belong to that Ajramar Jain sangh

To get an accurate and respectful answer, the best way is to:

1. Contact your local Ajramar Jain Sangh or the management of the Limbdi Ajramar Gadi.
2. Ask for the dīkshā details / guru‑shishya lineage (pattavali) of Mehulabai Mahasatiji.
3. They will be able to tell you the exact name and full title (e.g. “Pūjya Gurudev … M.S.”) so you can remember and use it with proper maryādā (respect).

I prefer not to guess in matters of a specific sadhviji’s Guru, because in Jain tradition this relationship is very sacred and should be stated only with full correctness.