Teja had travelled to Jakarta for the Asian Games with the national compound team as head coach.
India stormed into the final of the men's recurve team event for the first time in nine years after registering three wins at the Archery World Cup Stage 1.
Tiwary, who coached India at the Rio Olympics, suffered the stroke on Wednesday morning and CT scans revealed multiple blood clots in his brain.
They will be against Chinese Taipei in the final on Sunday.
This is the first Olympic qualifier where the top-three finishers in individual and team categories will get berths at the Paris Games.
India's medal tally at the ongoing Paralympics has gone up to 27, with six gold medals, nine silver medals, and 12 bronze medals.
All Indian athletes who've qualified for the paralympic games
The biggest shocker came earlier in the day in the men's compound team event when the Indian trio of Abhishek, Aman and Rajat defeated USA in a one-sided quarter-final.
'Forgive, but don't forget. Stand up for what's right, even when it's hard. Cherish happy memories with loved ones and hold them close. Celebrate yourself, ALWAYS.'
Recurve mixed team of Tarundeep Rai and Ridhi Phor came form behind to pip Great Britain in the shoot-off on Sunday
Top seed Mukunds crashes out in semi-finals of SKME ITF Open
Jyothi Surekha Vennam and Priyansh advanced to the compound mixed team final, confirming India's second medal, while Deepika Kumari brightened the country's gloomy recurve campaign, reaching to her second successive Archery World Cup semifinals after her comeback in the Stage 2 of the event, in Yecheon on Friday.
The presence of the two women athletes in the contingent, marks the maiden participation of female service athletes at the Olympics.
Shyam Sundar Swami and Jyoti Baliyan bagged India's their first medal in the World Archery Para Championships
The Indian men's team erased bitter memory of the past by ousting hosts China in the semi-final and sailing into the final of the recurve event in the Archery World Cup Stage IV, in Shanghai, on Friday. India face Japan in the summit-clash for the gold medal on Saturday.
Jyothi, who boasts of eight medals at the World Championships, dropped just five points to total 355 at the midway mark of 36 arrows. She shot 16 perfect 10s, and 15 more Xs (closer to the centre).
Indians withered late resistance from the French pair to seal the contest 152-149, a first-ever World Cup gold for India in the compound mixed team event.
The visitor returns not just with the jewel-like beauty of the country imprinted on the mind, the body rejuvenated by hot stone massages, but also with the captivating stories and myths that are built into every important structure -- whether a tourist magnet or an off-the-beaten track spot.
Team India showed perfect coordination to seal the issue 5-3 in style.
Compound archery chief coach Sergio Pagni opened up on India's recipes for securing historic three gold medals in the recent World Championships.
'Watch our Indian athletes in Tokyo Olympics,' Virat Kohli said in a video
'India is now adopting and recognising para sports and our performances.'
Jyothi Surekha Vennam and her debutant partner Ojas Deotale were at their ruthless best while prevailing over Chinese Taipei 159-154 as India grabbed the compound mixed team archery gold to open their account in the World Cup Stage 1 in Antalya on Saturday.
The Mission Olympic Cell is also considering higher incentives for retired Olympians and world-class players who want to take up coaching, in an effort to retain top talent within India.
The Indian government has established two expert committees aimed at elevating the country's sports performance.
India is hoping to win more than 25 medals from its largest-ever contingent of 84 athletes at the upcoming Paris Paralympic Games beginning on August 28
From 4-0 up to heartbreak: Indian archer Pooja Jatyan misses Paralympics semis berth, losing to Wu Chunyan of China
The AAI had to find a solution by the end of July as per the deadline given by the WA's executive board and since no progress has been made, the world governing body implemented the suspension order.
The 40-year-old Rai has won medals in every championships at the global and continental level but not the Olympics.
The Indian women's recurve team squandered a two-set lead and went down to top seed Russians in the shoot-off to bag a silver medal at the World Archery Championships, in the final in Copenhagen, on Sunday.
The silver and two bronze at the 2019 World Championships took India's overall count to eight medals in the premier biennial competition.
Indian men's archery team comprising Tarundeep Rai, Jayanta Talukdar and Rahul Banerjee secured Olympic berth beating Australians in the qualifiers at Ogden, US, on Friday.
The Indian duo of Sheetal Devi and Rakesh Kumar staged a remarkable comeback after the heartbreak in the semifinals to claim the bronze medal
The archers have also confirmed 10 more medals including at least three gold on Sunday.
The Indian trio of Jayanta Talukdar, Rahul Banerjee and Mangal Singh Champia fought through challenging conditions to clinch the men's team bronze after beating Chinese Taipei in the Archery competition of the Asian Games in Guangzhou on Friday.
Debutant Ankita Bhakat left behind seasoned campaigners like Deepika Kumar to emerge as the best-placed Indian archer at 11th in the women's individual recurve qualification.
India's archers have never been able to go past the quarter-final hurdle at the Olympic Games.
Sukhbeer Singh and Raginee Markoo prevailed over Swiss opponents Andrea Vallaro and Janine Hunsperger 152-147 to clinch their second medal in the tournament.
Nataraj and Desinghu are tipped to become the best male and female athletes of the Games.
The women's compound team thus has been unbeatable this season, having won the World Cup Stage 1 and Stage 2 gold medals in Shanghai and Yecheon in April and May respectively.
