Aung San Suu Kyi has cautioned the Indian government that she would not accept a repeat of New Delhi's chest-thumping violation of her country's territory last year, 'The Telegraph reported.
The Indian newspaper said that the caution came hours after India's junior home minister Kiren Rijiju publicly revived memories of that surgical strike in a tweet that was later deleted.
Suu Kyi's message, conveyed during negotiations and mentioned twice in a joint statement issued by the Myanmar leader and Indian Prime Minister Modi on Wednesday, comes three weeks after India announced surgical strikes - this time inside Pakistani-held territory.
'The Telegraph" report said that the message from Myanmar is the first, since the September 29 strikes across the Line of Control, from any of India's neighbours other than Pakistan demanding that New Delhi respects the sovereignty of others.
The Indian Army had conducted surgical strikes against Naga militants inside Myanmar on June 10, 2015.
"Both sides underlined their mutual respect for sovereignty and territorial integrity, and reaffirmed their shared commitment to fighting insurgent activity and the scourge of terrorism in all its forms and manifestations," the joint statement issued by India and Myanmar after two hours of talks between Modi and Suu Kyi said.
The statement iterated Myanmar's concerns: "Both sides expressed their mutual respect for the already demarcated boundary between the two countries."
Before 2016, India-Myanmar joint statements issued after meetings between their leaders had never included commitments by the two sides to respect each other's "sovereignty and territorial integrity", 'The Telegraph' report said.
The first signs of the change came during the August visit of Myanmar's President, Htin Kyaw, when Myanmar sought such an assurance from India.
The joint statement issued today is the first time India has in two separate sentences committed to respecting the territorial integrity of Myanmar, and comes 16 months after the Modi government's first publicised "surgical strike".
In June 2015, after militants had crossed over from Myanmar into Manipur and ambushed and killed 18 Indian soldiers, the army launched cross-border strikes in which militant camps were struck.
India's director-general of military operations (DGMO) was careful in stating that the strikes had occurred "along the India-Myanmar border". In reality, the strikes had occurred on Myanmar territory - with that country's knowledge - but with the understanding that the cross-border nature of the operation would remain deniable.
On Wednesday, two hours before Modi greeted Suu Kyi at Hyderabad House here, Rijiju stoked the embers of that sensitive episode again.
During briefings before the Parliament standing committee on external affairs yesterday, some Opposition MPs had asked the foreign secretary if India had conducted surgical strikes before the September 29 operations.
"Short memory?" Rijiju asked on Twitter, providing the hyperlink to an article on the June 10, 2015, cross-border strike, and virtually reaffirming that Indian troops had entered Myanmar. "Or is it a case of 'You can't wake a person who is pretending to be asleep'. Even MPs are asking, is it first surgical strike?"
Late in the evening, the tweet was deleted, 'The Telegraph' said.
Unlike Pakistan, Myanmar has for the past few years been supportive of Indian efforts against terrorism. It has helped push some Indian militant groups hiding in its territory back across the border, enabling Indian troops to target them.
When it felt it couldn't push these groups across the border, Myanmar has allowed Indian troops to enter its territory, carry out targeted strikes against militants and return, with the understanding that neither side would go public formally, 'The Telegraph' said.
Over the past year, Indian diplomats said, they had managed to assuage Myanmar - and had been helped by the formation of a new government under Suu Kyi that did not bear the baggage of last year's embarrassment.
Rijiju's remarks today, and Myanmar's reaction suggest those efforts may have been undone, 'The Telegraph' report said.
Suu Kyi's warning reflects the sensitivities of the smaller neighbours that India needs to remain alert to as it tries to build a regional coalition of countries - many of which are victims of terrorism - against Pakistan, senior officials said.
It also highlights the pitfalls of going public with cross-border strikes - something diplomats have often cautioned the government against - because it makes cooperation from the other country, even a friendly one like Myanmar, that much harder in the future.