Hi, First of all check if the salary will be net or gross (be carefull because companies will tell you always gross amount). Here you have to pay aproximately 16% from gross and a variable as income taxes (calculate monthly ARS 2000 aprox). Anyway with that kind of salary you can live ok, 1 person. In addition here you will have 13 salaries per year, because in June and December you´ll receive a 50% of the best salary in the semester as a plus.
Are they offering cover the expenses if you travel? are they offering a contract? I don´t know the regulations for foreigners in the last.
Take into consideration to negotiate extra hours and vacation (standard is 15 days per year) but if money not enaugh you can ask for 21 days as a compensation in negotiation. Ask for all the negotiated in writing.
If they are looking for people in India (?) is because they want to reduce costs and/or because ther are not able to cover the position locally. I think is the second and you can ask for more ARS as a Java Developer (I think 65000/75000 ARS, as I know is a difficult role to cover nowadays and they will negotiate if interested in your profile.
Argentina is a nice country to live in, but expensive because of inflation (25/30% annual). Do your math and ask when they´ll make a salary revision and how much was the last raise.
Anyway, also take this as an open gate. If you don´t do ok with this company you´ll have the chance of changing in the near future, As I said, companies are hungry for developers nowadays. So, don´t go crazy... you´ll be fine here