Techspawn solutions Software Engineer interview questions

I applied for python developer through glassdoor only. There are two technical rounds. After one round they will ask you do assignment which consists of some basic programming questions. Only one person take technical interviews, and has quite good knowledge and is also good in nature. I cracked all of them. But they were asking to submit an amount before joining. That made me think again about joining it, because no company demands for money or cheque.