The e-Tourist Visa facility is available for nationals of more than 150 countries whose objective of visiting India is recreation, sight seeing, casual visit to meet friends or relatives, short duration medical treatment or casual business visit. The e-Tourist Visa facility involves completely online application for which no facilitation is required by any intermediary / agents etc.
A conference visa may also be obtained from the concerned Indian Mission. When you go for the conference visa, please take a copy of the invitation letter from SPACE 2016 (which would be mailed to you after you register for SPACE 2016), a copy of our institute's registration certificate:
http://www.math.umn.edu/~math-sa-sara0050/space16/Annex-1-AIMSCS-Registration-Certificate.pdf, and copies of the clearances from three concerned ministries: Ministry of External Affairs (MEA), Ministry of Home Affairs (MHA) and Ministry of Human Resources and Development (MHRD).
Also, a bit more weight can be obtained by the following letters of support from Meity, NTRO, DRDO and NITI Aayog.
Please get in touch with us if you need any support.