About Class 10 Master Formula Sheet : 

This is a 9 page PDF which contains all Formulas, Important Point, Standard Results and Many Short Tricks

Payment Link to BUY the PDF: 
https://rzp.io/l/FormulaSheetPDF

Make Payment Through this Payment Link , After Successful Payment you are Redirected to Download Page, From There you can Download it. 

In Any Case, If you are not able to download it after making payment, Then Whatsapp the payment screenshot on this Number 9905596386.You will get reply within 1-2 hour.