Mumbai, Sept. 16 -- Tata Trusts want Tata Sons to explore all options, including asking the Reserve Bank of India to reconsider and clarify its decision directing it to go public, before taking legal recourse, two group executives aware of the plans said. The central bank is understood to have filed a caveat in the Bombay high court on Monday to ensure its position is heard before any judicial order on the public listing of Tata Sons, which could mark the start of a protracted legal tussle between the central bank and India's largest conglomerate. The decision follows RBI's Saturday letter rejecting Tata Sons' request to surrender its registration, which would force it to proceed with a public share sale. Since Tata Trusts chair Noel Tata a...