Cancelling a partnership

20 years ago, Mr. Zaid invested Rs. 50 lakh in a business. All the items were purchased from his money and it was decided that he would get 25% of the profit. The other partner agreed on working in the store. Mr. Zaid also kept on visiting the store until he got sick 5 years back. Now if he wants to end the business with mutual agreement, will he get Rs. 50 lakh? Or since the value of the money has increased alot, he will get extra benefit?