Congress Monday demanded that the EC file an FIR against PM Narendra Modi and probe alleged pumping of money in Uttarakhand by BJP.
It urged the Commission to ensure that no postal votes cast after the designated time of 5.00 PM in the Uttarakhand Assembly polls on February 15 be counted.
The BJP accused Chief Minister Harish Rawat of pressurising officials to lodge false cases against BJP workers.
The state Assembly elections were held on February 15.
Chief Electoral Officer had convened a press conference to announce that a record 68 per cent had voted across the state.
Congress President Kishore Upadhyay charged BJP with publishing advertisements worth crores of rupees on the front pages of newspapers and buying prime time slots for the party's campaigns on private news and entertainment channels.
Maximum voting was recorded in Uttarkashi district (73 per cent), followed by Nainital and Haridwar (both 70 per cent). Almora (52 per cent) in Kumaon recorded the lowest polling until 5 pm.
The teams, accompanied by mules and security personnel, will take another two days to return with the electronic voting machines and other materials.
The election in the poll-bound hill state is considered a direct contest between the ruling Congress and BJP. But the presence of about a dozen rebel candidates in the fray as independents may upset the calculations.
Over 74 lakh voters will seal the fate of 628 candidates in EVM machines between 8 AM to 5 PM when polling concludes, state Election office informed.
The polling to Karnaprayag constituency of the state was adjourned due to the death of BSP candidate Kuldeep Singh Kanwasi and it will now be held on March 9.
Narayan Singh Rana, RSS swayamsevak, is the father of Sushma, who is married to Pankaj Singh, son of Home Minister Rajnath Singh.