I totally understand how frustrating sudden account restrictions can be, especially when everything was working fine before! Facebook has been tightening policies lately, particularly for certain regions. Here's what to do: first, go to "Account Quality" in Ads Manager to see specific policy violations. Then submit an appeal through facebook.com/help/contact/260749603972907 with your ID/passport and explain the situation clearly.
Check if your recent ads contained any new claims, images, or targeting that might have triggered the system. Sometimes it's just updated policy enforcement on previously accepted content. For the disabled account, be patient - appeals typically take 3-7 days. Avoid creating new accounts as this can make things worse.
What type of products/services were you advertising to India, and did you notice any specific error messages when the rejections started happening?