Forced To Go On A Paid Leave

I am working for a company right now, joined them from 23rd march and from day one I am working from home. Working almost for 12 hours every day including Saturdays and yesterday they called me and told me to instantly stop working and forced me to take a leave which will be unpaid. The HR dint ask me or discuss anything about the same, she straight away said we are putting you on leave. Not ready to release my march pay. Provided me no official document declaring that I have secured employment with them while I am leaving. They just informed me about I am on unpaid leave and will let me know a day prior to rejoining when they start working from the office. Neither the boss nor the people I report to spoke to me after that or discussed this with me about the situation.