Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Unit | Type | Gross MW | Construction start | Operation start |
| --- | --- | --- | --- | --- |
| Phase I | Phase I | Phase I | Phase I | Phase I |
| Kakrapar 1 | PHWR | 220 | 1 December 1984 | 6 May 1993 |
| Kakrapar 2 | PHWR | 220 | 1 April 1985 | 1 September 1995 |
| Phase II | Phase II | Phase II | Phase II | Phase II |
| Kakrapar 3 | PHWR | 700 | 22 November 2010 | 2015 |
| Kakrapar 4 | PHWR | 700 | 22 November 2010 | 2016 |
Question:
Gross MW of 220, and a Unit of kakrapar 1 involves what operation start?
Answer:
6 May 1993