The Lok Sabha exercises more powers than the Rajya Sabha:
(i) Any ordinary law needs to be passed by both the Houses, but if there is a dispute between the two Houses, the final decision is taken in a joint session in which members of both the Houses sit together.
(ii) The Lok Sabha exercises more powers in money matters. Once the Lok Sabha passes the budget of the government or any other money-related law, the Rajya Sabha cannot reject it. The Rajya Sabha can only delay it by 14 days or suggest changes in it. The Lok Sabha may or may not accept these changes.
(iii) Most importantly, the Lok Sabha controls the Council of Ministers. If the majority of the Lok Sabha members say that they have no confidence in the Council of Ministers, then all the ministers including the Prime Minister have to resign.
Thus it can be concluded that Lok Sabha is more powerful that Rajya Sabha.