Rate Limiting : Currently, there is no rate limit. You are requested to apply judicial discretion while using ClearTax APIs to ensure overall level of service on our API server for all users.
Best Practices :
Upload only 1 file at a time.
Space out multiple requests evenly to reduce load on our server.
Limit file size to 1 Mb to ensure faster processing and validation.
While there is practically no limitation on the number of rows or documents per file, for the purpose of optimization, we have a maximum limit of 250 line items per document in a file.