The Prime Minister's remarks came during his farewell speech to the retiring members of the Rajya Sabha.
"There are very few in the House who have not been associated with ideology of any party. Most members here are from ideological background. So, it is quite natural that they try to establish their viewpoint in the House. But we also have expectations that it is not necessary that whatever happens in the (Lok Sabha) must be followed in the (Rajya Sabha)," he said.
PM Modi said the Upper House, with senior members, had a "unique significance" and played a key role in policy formulation.
The Prime Minister said it was unfortunate that the retiring members would not be a part of the decision making process when the Triple Talaq bill is taken up.
The Prime Minister added: "I hope the retiring members would now play an even stronger role in social service. All of them have ... contributed in their own way. They have worked to the best of their ability for the brighter future of the nation...
"My own office is always open to you all. Please feel free to share your thoughts on vital issues," he said.
In his speech, the Prime Minister mentioned the distinguished work of many of the retiring members including former Attorney General K. Parasaran, cricketer Sachin Tendulkar, hockey veteran Dilip Tirky and Deputy Chairman P.J. Kurien.