Rajya Sabha on Thursday took up for consideration the bill, which drew wide support from parties across the spectrum except SP and Shiv Sena.
The quota bill was moved in the upper house by Personnel Minister V Narayanasamy.
The bill got wide support during the discussion with members from BJP, CPI-M, CPI, Trinamool Congress and JD-U backing it. However, like SP, Shiv Sena opposed it.
Moving the bill, Narayanasamy said it is important in the backdrop of backwardness of the Scheduled Castes and Scheduled Tribes and their inadequate representation in government jobs.
With the aim of garnering maximum support, government has incorporated some crucial elements like 22 per cent cap on promotions for which consideration of Annual Confidential Report (ACR) will be crucial.
Leader of the Opposition Arun Jaitley, who initiated the debate on the bill, asked the government to make changes so that it did not create reverse discrimination.
The bill on 'Reservation in promotion' will require two-third support for its passage.
Congress will issue a whip to its MPs in Rajya Sabha asking them to vote in favour of the promotion quota bill on Monday, party spokesperson Rashid Alvi said.
"The Congress is committed that there should be reservations in promotions for SCs and STs. After much thought we have committed to this and we are bringing it to Parliament and we hope that we will be able to get the Bill cleared in the Parliament," Alvi said in New Delhi.
He was asked if the party was planning to issue a whip for voting on the Bill on reservation for SCs and STs in promotions
"Definitely the party will issue a whip. Why will it not issue a whip?" Alvi responded.
SP sticks to opposing quota in job reservations
Uttar Pradesh Chief Minister Akhilesh Yadav on Sunday stuck to Samajwadi Party's stand opposing quota in job promotions for SC/STs and also FDI in multi-brand retail.
On the issue of extending support to Government on FDI in insurance and other planned economic reforms, Yadav said the party supremo Mulayam Singh Yadav and its national leadership will take a decision when they are taken up for consideration.
"Our party has different view," Yadav told reporters when asked why it was not supporting the Constitutional Amendment Bill for job quota reservation. He was speaking on the sidelines of 3rd anniversary of Vidyagyan School in Uttar Pradesh Bulandshahr district.
On FDI in retail, Samajwadi party, a key outside supporter of UPA, has said it is not in favour of this measure.
"We will accept FDI in any other field. We do not favour FDI in retails because businesses of lot of people is connected with it," Yadav said.
When asked about SP extending support to the Government on FDI in insurance and other economic legislations, Yadav said, "We will consider them. Netaji and national leadership of party will decide on which issue and what kind of support should be rendered."
On unemployment allowance in the state, the Chief Minister said, "everything has been identified. We will soon get money transferred in account."