Subordinate conjunctions exemplifies the part of speech and complex sentences that act as link to join two sentences out of which one being a dependent clause and the another being the independent one. These are used for marking the significance of principle(independent) clause and the subordinate(dependent) clause to provide a transition between two ideas portrayed in the same sentence or statement. According to the definition, there are many subordinate conjunctions that could be used here. Few of them are following :
" As we want to go to the fair, we're going to have to save our money".
"Since we want to go to the fair, we're going to have to save our money".
Actually the word Pagalpanti is a word in Hindi which means Madness or insanity, lunacy. So the person above is partially correct. Pls make me brainliest!! :D