New Delhi (PTI): CPI (M) Member of Parliament P V Sivadasan in Rajya Sabha on Monday raised the issue of collapse of Uttrakhand's Silkyara tunnel and demanded an inquiry into the incident alleging that safety measures were not implemented by the company concerned.

A part of the Uttarkashi tunnel -- around 200 metres from the entrance -- had collapsed on November 12 trapping 41 workers.

A rescue team pulled out all trapped workers on November 28 in a multi-agency operation that hovered between hope and despair for almost 17 days.

Raising the issue during the Zero Hour in the House, Sivadasan termed the incident very painful and accused the tunnelling company of violating all security measures, rules and norms.

"...transparent and fair inquiry is very necessary," said the MP from Communist Party of India - Marxist.

Silkyara was the not the sole incident and such events have happened before in the area, he said.

Ajay Pratap Singh of BJP said Sivadasan may have his own views on the incident, but the government led by Prime Minister Narendra Modi is committed to the wellbeing of the poor.

He expressed his gratitude to the Prime Minister, Uttrakhand Chief Minister Pushkar Dhami, Union Minister V K Singh, and all those involved in the rescue operation, including rat miners, for successfully evacuating the workers.

NHIDCL is constructing the tunnel through Hyderabad-based Navayuga Engineering Company Ltd.

Meanwhile, Sant Balbir Singh of AAP raised the issue of air pollution.

He said about 21 lakh deaths take place every year due to air pollution.

The air was clean for only one day in Delhi, five days in Mumbai, and 15 days in Chennai in a year Singh said.

He further said whenever there are talks about air pollution, it is attributed to stubble burning by farmers of Punjab.

He said no farmer of Punjab wants to burn stubble and urged the Centre to grant financial assistance to farmers so that they don't have to burn their crop to clean the field before fresh sowing.

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New Delhi, Mar 4: Delhi Chief Minister Arvind Kejriwal in his reply to the latest ED summons related to the excise policy case has expressed readiness to appear before the agency through video-conferencing after March 12, government sources said on Monday.

Kejriwal has so far skipped multiple summonses of the Enforcement Directorate (ED), calling them illegal and asking the agency to wait as the matter was in court.

The chief minister reiterated that the summonses are "illegal" but still he was ready to answer the questions by the probe agency, the sources said.

Kejriwal also has to appear before a city court on March 16. The court has sought his personal appearance in a complaint case filed by the ED over skipping of its summonses by him.