If you are an indian passport holder than i would imagine that you might have some problems obtaining dominican visa. However, if you hold a swiss passport or their residency than the process can become alot easier.
I am sure you can contact a dominican embassy there; after-all, i hear there are a ton of dominicans living in switzerland.
Ok, i have just found the embassy for you in switzerland.
CHUTZENTRASSE 69
3007 BERN
SWITZERLAND
Phone: (4131) 351-1585
click below for their webpage.