The 80-year-old Congress leader will fly to New Delhi Friday to meet Congress chief Sonia Gandhi.
Their parents had come to Mandi but returned home after 20 days.
Dogra admitted the inquiry report indicted HPSEB Ltd and Larji project for the failures. However, he assured that the government would examine all shortcomings and come out with an action plan.
For two hours, the parents watched naval, NDRF and ITBP divers make several attempts to find the bodies.
Seven Navy divers were flown to Mandi on Thursday from Goa, Kolkata and Patna to assist NDRF’s 39 divers.
Voters in the state broke the myth of voting for an incumbent government
There are more than 48.10 lakh voters in 12 districts, including the snowy tribal belt of Kinnaur, Lahual-Spiti and Bharmour, part of Mandi.
It is against the country’s fundamental values to involve names of great martyrs in politics, said Sonia.
Thakur has dismissed both Rana’s candidature and even sent him a notice for levelling defamatory charges.