On 1st January 2004, a company bought Plant and Machinery costing ₹45,000 and spent ₹5000 on its erection. Addition is made on 1st July 2006 for the value of ₹20,000. Depreciation is provided @ 10% p.a. Prepare plant and machinery account for 4 years under:
1. Fixed Instalment system
2. Diminishing Balance method