Maruti Suzuki has received the crucial go-ahead from Tata Motors that would enable it to source diesel engines from Fiat India. Maruti Suzuki was in talks with Fiat India for over six months discussing the possibilities, but the final hurdle was cleared last week once Tata Motors gave its blessing. Fiat India will start manufacturing the diesel engines for Maruti Suzuki from January 2 and those engines will be dispatched by second week of January. The agreement would enable Maruti Suzuki to reduce the waiting period significantly, across the current range of diesel cars hosted by the company that includes - Maruti Suzuki Swift, Swift DZire, SX4 and Ritz. Fiat India is a 50:50 joint venture company between Italy's Fiat and Tata Motors. The JV form has an Rs 4500 crore facility at Ranjangaon near Pune that apart from producing 300,000 diesel and petrol engines per year also manufacturers the Fiat Punto and Linea.