Interest in Islam

I was wondering if you get a sin if you help a person to a get an interest loan by being a translator. If so, then how can you repent?

I'm a Muslim, living in a non-Muslim land, and need to buy a house with a usurious loan. Is it lawful for me to do so or not? Please clarify in details, for it is a serious issue. Jazakum Allah Khayran.

Respected Scholars Salamwailakum I i am living in india and i have fixed some money in post office it it will get some fixed interest every month. is this haram to take the interest of the money and somebody said that in india it is not haram so please clearify me as per the islamic law and what quran says. and from some past years i am taking this if it is haram what should i do and another thing i am not using this money on my food stuff i am spending on my elect. bills water bills ect. so please guide meallahafiz