War of words intensified between West Bengal Governor Jagdeep Dhankhar and Chief Minister Mamata Banerjee, as they continued to exchange letters lashing out at each other over a host of issues, the latest bone of contention being the PM-Kisan scheme. The governor on Sunday sent a missive to Banerjee, seeking to know why the state wants to be an "intermediary" in the transfer of central funds to farmers under the PM-Kisan scheme, a day after the CM, in a letter, asked him to "act within the mandates of the Constitution.”