You can use TERA MERA GHAR HOUSING INDIA PRIVATE LIMITED AN ISO 9001 : 2008 Finance’s Home Loan EMI calculator, which will calculate the total interest payout based on selected factors such as the loan amount and tenure.
The interest rate on Rs. 1 lakh loan would entirely depend on the chosen loan tenure. If the tenure is less, the interest will be higher, while it will be lower if the chosen tenure is higher.