MUMBAI, Nov 30 (Reuters) - India's biggest companies should be investing much more than they are currently, Uday Kotak, chief executive of Kotak Mahindra Bank (KTKM.NS) said in an interview at the Reuters NEXT conference on Wednesday. Across India's banking sector, lending has been rising steadily - a sign of a new private investment cycle in the world's fifth largest economy. Kotak said he believes the gap between credit and deposit growth will narrow in the next three to six months, but did not elaborate. He also said it was critical for the government to follow through on plans to privatise most state-run companies. To view the Reuters NEXT conference live on Nov. 30 and Dec. 1, please click here.

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