Nine seats are going to polls in Uttar Pradesh, four in Punjab and one in Kerala.
"Peace and harmony is the only way forward to ensure a prosperous future," Dr Singh said.
Modi will inaugurate the integrated check post on the Indian side, Union minister Harsimrat Badal said.
During the visit to the gurudwara, some pro-Khalistan elements shouted questions about Khalistani separatist Hardeep Singh Nijjar, killed in Canada in June this year.
Haryana Chief Minister Nayab Singh Saini emphasised the importance of Sikh Gurus' teachings at the Baisakhi Mahotsav in Kurukshetra, highlighting the government's efforts to promote these values and support the Sikh community.
The Election Commission on Monday rescheduled from November 13 to November 20 the assembly bypolls to all nine and four seats in Uttar Pradesh and Punjab, respectively, and one seat in Kerala in view of festivals, an official statement said.
The MEA said the government of Pakistan should act in defence of their own minorities instead of "preaching sermons" about it to other countries.
Navjot Singh Sidhu was not part of the Channi-led 'jatha' (group) which went to pay obeisance at the gurdwara.
Singh along with a team of industrialists and senior functionaries of the state would lay the foundation stone of the Nankana Sahib-Wagah Highway on March 16.
In another tweet, he congratulated his own government for completing the construction work on time.
The government has also suspended movement of all types of passengers through international border points with Pakistan from 00:00 hours of March 16 in view of the threat from coronavirus.
Senior IPS officer Bharti Arora, currently posted as the inspector general of police of Ambala range in Haryana, has sought voluntary retirement from service citing personal grounds, and said she wants to dedicate the rest of her life to the service of Lord Sri Krishna.
Amarinder Singh told mediapersons that both Kovind and Modi had accepted the Punjab government's invitation to be part of the historic celebrations and that the modalities of their visits would be chalked out after the Kartarpur Corridor opening programme was finalised with Pakistan.
According to the "do's and don'ts" issued by the ministry of home affairs, children below 13 years and elderly persons of about 75 years and above will have to travel in groups. Eco-friendly material, preferably cloth bags, should be used during the pilgrimage and the surroundings should be kept clean.
The 2016 SAARC Summit was to be held in Islamabad. But after the terrorist attack on an Indian Army camp in Uri in Jammu and Kashmir on September 18 that year, India expressed its inability to participate in the summit
In a letter to Pakistan Foreign Minister Shah Mehmood Qureshi, Singh said it is a historic occasion, but regretted his inability to be present.
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Taking to Twitter, Gandhi termed Friday's attack reprehensible, and said the only known antidote to bigotry is love, mutual respect and understanding.
"We believe in peace and we are giving a message of peace from here. But, their generals should understand that we have a large Army and we are prepared..."
In his annual Vijayadashmi address, the RSS chief also spoke about "urban maoism", the Sabarimala row and the need to strengthen the country's borders.
The decision to open Kartarpur shrine was taken by the National Command and Operation Centre (NCOC) on Saturday due to the approaching death anniversary of Sikhism founder Baba Guru Nanak Dev on September 22.
She also said the Kartarpur corridor initiative was not linked to the dialogue process with Pakistan.
Barring 2004 and 2009 when Navjot Singh Sidhu won the Amritsar seat as a BJP MP and 1998 when Daya Singh Sodhi from BJP was elected as the MP, it has essentially a Congress bastion.
"On martyrdom day, I pay my respects to Bhagat Singh, Sukhdev and Rajguru who sacrificed their life for the nation," PM said in a statement.
Virat Kohli sent the shutterbugs into a clicking frenzy as he received the Rajiv Gandhi Khel Ratna award
'Wherever in the world there is political instability, those countries are beset with severe crises today. But India is in a much better position than the rest of the world due to the decisions taken by my government in the national interest,' President Droupadi Murmu said in her address to both Houses of Parliament.
Following is the full text of Prime Minister Narendra Modi's address from the ramparts of the Red Fort on the 73rd Independence Day.