Union Minister Nitin Gadkari has sought investments from the Tata Group in and around Nagpur, citing strengths like infrastructure, land availability and connectivity in his home city.In a letter to Tata Sons Chairman N Chandrasekaran on October 7, Gadkari, who handles the road transport and highways portfolio, said group companies engaged in businesses like steel, auto, consumer products, IT services and aviation can choose to invest in Nagpur.