Lok Sabha exercise more powers than the Rajya Sabha
ordinary bill : any ordinary law needs to be passed by both the houses but if there is a difference btwn the two houses, the final decision is taken in a joint session in which members of both the houses sit together. because of the larger number number of members, the view of lok sabha is likely to prevail in such a meeting
money bill : the lok sabha exercises more powers in money matters.once the lok sabha passes the budget of the govt 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 which the lok sabha may or may not accept it.
no confidence motion : most importantly the lok sabha controls the councils of ministers. only a person who enjoys the support of the majority of the members in lok sabha is appointed as the prime minister. if the majority of the lok sabha members says"no confidence" in the councils of minister all ministers including PM HAVE TO QUIT