Tata Metaliks Limited posted a 122 per cent jump in net profit to Rs 3.78 crore during the first quarter of the current fiscal over Rs 1.72 crore in the corresponding period last year. The total sales of the company increased by 26 per cent to Rs 30.71 crore during the period against Rs 24 crore last year. The huge increase in net profit was mainly due to a significant fall in interest burden which decline from Rs 79 lakh to Rs 49 lakh in Q1 this year.