Vowels:
Anuswaara and Visarga
अं am अः aha
Consonants
You can Learn Sanskrit through self-study from the following resources:
- https://www.learnsanskrit.org/
- http://learnsanskritonline.com/
- https://www.chinfo.org/index.php/easy-sanskrit-course
- https://www.openpathshala.com/
- https://www.thesanskritlanguage.com/
- https://www.apnacourse.com/course/sanskrit-for-beginners
- http://enjoylearningsanskrit.com/
- http://kksongs.org
- http://www.acharya.gen.in
- https://www.sanskritdictionary.com/
- https://www.languagetrainers.com/sanskrit-courses.php
You can also download Sanskrit Learning apps from the Google Play store:
https://play.google.com/store/apps/details?id=com.learnsanskrit&hl=en&gl=US