so then it should be intrinsic value + the time decay value + volatility.
Series has just started so first two factors must be major for calculating price of the option theoretically.There must be some board who checks on manipulation of premium value of options
In theory yes - "intrinsic value + the time decay value + volatility".
Your case it is OTM - so purely premium.
Usually when important events like elections,Quarterly results etc the premium tend to be very high.Once the event is over and direction established the other side tend to loose the premium significantly.
And you cannot claim that it is manipulation of option prices.
There is no board who checks on manipulation of premium value of options.