Recently ETH got huge price increase. Is there any specific reason for that much of Increase ?

I think the reason of that rising may be the popularity. People's interest in cryptocurrencies has increased, and in my opinion, ethereum is the best altcoin.
if we take into account the prospects that the specialists predicted for the near future, then we need to have time to buy the etherium, before it's too late. The fact is that the prices practically can double already in the near future.