"We will do our best to provide relief and rehabilitation to people of Uttarakhand who were affected by the disaster," Union Home Secretary R K Singh told reporters here.
Singh said authorities will ensure regular supply of essential commodities, establish communication links with all inaccessible villages and rehabilitate affected people.
"We will also look for all missing people," he said.
At least 16 lakh people in four districts of Uttarkashi, Chamoli, Rudraprayag and Garhwal were affected by the June 16 rains and floods.
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Meanwhile, Home Minister Sushilkumar Shinde will visit Uttarakhand tomorrow to take stock of the relief, rescue and rehabilitation operations in the hill state.
Shinde will hold meeting with Chief Minister Vijay Bahuguna, senior officials of the state government, Army, Air Force, ITBP, NDRF and all those engaged in the ongoing relief, rescue and rehabilitation efforts.
This will be the Home Minister's second visit to the flood-hit state.