Is S1 and S2 Visa allows Mulitiple entry? I am an Indian. Please advise.

Mohamed, you may apply for a multiple S2 type. However, it's impossible to acquire a multiple S1 type. If you check S1 type carefully, you may find that the entries might be marked "0". S1 is usually valid for 30 days. You need to change it into a temporary resident permit before it expires.