Lesson 52. Yaantavaantaadesha-sandhi.
The rules for this are tabulated below
| 1 | ए | followed by | any swara | = | ए changing to अय् |
| 2 | ऐ | followed by | any swara | = | ऐ changing to आय् |
| 3 | ओ | followed by | any swara | = | ओ changing to अव् |
| 4 | औ | followed by | any swara | = | औ changing to आव् |