"As long we are dependent on cars, our environment cannot be healthy. This is a life and death question. The situation is so bad that if don't wake up today then our children will certainly face the consequences," he told reporters.
Besides Mr Tulsi, BJP lawmaker Arjun Ram Meghwal also rides a bicycle to the Parliament.
Yesterday, Congress parliamentarian Gaurav Gogoi wore a mask as he walked into Parliament, reflecting concerns about pollution in Delhi, which is at emergency levels.
"I thought I would walk to Parliament, but then saw the report on pollution and decided to wear a mask. But even though I am wearing the mask, I feel the irritation on my tongue and throat," Mr Gogoi said.
Delhi, which earlier this year was found to be the world's most polluted major city by the World Health Organisation, is battling severe air pollution that has been compounded by the winter.
Pulled up by the High Court which compared living in the city to "living in a gas chamber", the Delhi government last week announced a string of urgent measures that included shutting down nearby thermal power plants, announcing vacuum cleaning on major streets and a controversial rule to allow cars with odd and even registration plates on alternating days.
Even though the decision earned quite a few detractors, many noted people including the Chief Justice of India, Justice TS Thakur, approved the plan and said yesterday that judges should car pool.
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