I need help in applying for Schengen Visa for Germany/Switzerland. I am an Indian national pursuing my PhD in the US in New York. I want to attend a conference in Germany where I am invited to present my work. I want to ask if I can successfully apply for the Schengen visa in India. My reason for applying in India is that, since I received the invitation to give a talk at this conference, I am unable to find an appointment time in either of the consulates in New York before the 20th of June. And I have a pre-planned trip to India from July 3-Aug 5 to visit my family for one month, and I hope to fly to Europe directly from India. Further, I am required to attend a summer school in Michigan from 17th June - 30th June. Hence, dates in late June also would not work for me even if I were to postpone my trip to India. I have to be in India by July 23rd for a family reason. I have seen on this link:
https://eeas.europa.eu/archives/delegations/india/more_info/faq/schengen_visa_en.htm#faq2
under "Who can apply for Schengen visa in India?" that Indian nationals and nationals of other countries legally residing in India can apply. Persons residing in other countries may only apply if they can present a justification for applying in India rather than their country of residence.
Upon asking some other folks who are Indian nationals who reside in the US, who also tried to apply for Schengen visa in India, they were told that they have to reside in India for three months before applying.
A few more details about me, I have an Indian passport with my permanent residence in India. I also have a PAN card, Aadhar card and Domicile certificate which reflect my permanent residence in India. I am not sure if I am considered to be residing in India.
Since I am residing in the United States, there is the possibility I may only apply if I can present a justification. Can you please let me know what documents you think I may need to justify my application in this case?