With Bumrah leading the charge, India prised out five wickets in the second session to snuff out South Africa's hopes of reaching the 200 mark.
Kotian took four wickets as India A restricted South Africa A to 299 for 9 on the first day of the opening four-day match at the BCCI CoE grounds in Bengaluru on Thursday.
Vice-captain Rishabh Pant said India's batters should have adapted to the challenge of playing on a tricky pitch at the Eden Gardens in Kolkata.
South Africa will be eager to turn consistent recent form into a title-winning run when they open their women's ODI World Cup campaign against traditional powerhouses England in Guwahati on Friday.
South Africa sharpen spin game in attacking net session ahead of Eden Test
The Harmanpreet Kaur-led India will be playing an ODI World Cup final for the third time, having finished runners-up in 2005 and 2017 to Australia and England, respectively. This will be South Africa's maiden appearance in the final.
Openers Yashasvi Jaiswal and K L Rahul perished early as India fumbled in the chase of a mammoth 549-run target on Day 4 of the second Test.
Senuran Muthusamy and Marco Jansen made Indian finger spinners' look ordinary in good batting conditions with invaluable lower-order contributions as South Africa seized control of the second Test.
South Africa spinner Prenelan Subrayen has been reported for a suspect bowling action in the first ODI against Australia.
The Proteas arrive high on confidence, having fought out a hard-earned 1-1 draw in Pakistan last month under challenging conditions.
Frustrating to lose wickets to part-timer; SA are doing right to make three finals: Wolvaardt
Abhimanyu Easwaran made the future path all the more tough with his second duck of the match, while Sai Sudharsan concluded his lukewarm preparation for the South Africa Test series with an underwhelming 23 off 38 balls.
Matthew Breetzke became the first player to score half centuries in each of his first five One-Day International appearances as South Africa beat England by five runs in the second ODI at Lord's on Thursday.
Countering Bumrah before spinners come into play will be key for SA: Graeme Smith
Arshdeep Singh has enough experience to understand that the Indian team management is trying different combinations looking at the bigger picture, bowling coach Morne Morkel said.
The Indian women's team is set to leave for New Delhi from Mumbai on Tuesday for a special meeting with Prime Minister Narendra Modi to celebrate their World Cup triumph.
Deepti Sharma, the World Cup's leading wicket-taker who took a magnificent 5/39 in the final, is joined by teammates Smriti Mandhana and Jemimah Rodrigues in World Cup's Team of the Tournament.
The T20I series against South Africa will be played from 10-14 September, following the ongoing ODI series where the Proteas hold an unassailable 2-0 lead heading into the final match on Sunday.
Deepti jumps two places to 5th, Mandhana continues to hold top spot in ODI rankings
Conrad conceded that South Africa were a "batter light" but explained that if the players they have were willing to play with a little more self-confidence, it could work in Proteas' favour.
South Africa coach Shukri Conrad was overwhelmed to see his spinners rule the roost in the first Test against India at the Eden Gardens, signalling to him that the Rainbow Nation is no longer an exclusive "fast bowling country" and hoped that a lot more slow bowlers will emerge.
India A skipper Rishabh Pant will look to build on the gains from the first match, while the likes of Mohammed Siraj and Kuldeep Yadav will aim for crucial red-ball game time in the second four-day match against a Temba Bavuma-led South Africa A in Bengaluru from Thursday.
India's awe-inspiring batting depth will face a stern test against South Africa's quality spin attack in the first Test, starting in Kolkata on Friday.
'Funny enough, I'm not one for records, but when you mention Meg Lanning, I'm glad I'm above that one. As long as we are winning the games, then I'm all good.'
Earlier, after incessant rain interrupted the exciting contest, South Africa captain Laura Wolvaardt won the toss and opted to field against the hosts India.
Pant took a bit to settle into his rhythm behind the stumps, and once he came to terms with the surface and bowlers the wicketkeeper was quite tidy.
Leg-spinner Alana King's spellbinding wizardry formed the cornerstone of Australia's seven-wicket triumph over South Africa as the defending champions concluded the Women's World Cup league stage firmly on top of the table in Indore on Saturday.
Abhishek Sharma's flamboyance will meet its match in Shaheen Shah Afridi's precision in what promises to be an "edge of the seat" battle in the Asia Cup final on Sunday.
Shubman Gill's form in the series is a concern for India as he has now gone six games without a half-century.
'I don't know what the maths looks like but we're playing good cricket and we want it to continue.'
Pakistan collapsed from 362-5 to 378 all out as Muthusamy finished with Test best figures of 6-117.
Harmanpreet Kaur, Smrit Mandhana, Deepti Sharma, Shafali Verma, and Jemimah Rodrigues are poised to see an uplift of 25 to 35 per cent in brand value.
This was India's fourth defeat in the last six Tests at home and in all four Tests -- including three against New Zealand -- their batters have flopped against spin.
As India chase history at home in Navi Mumbai, while Laura Wolvaardt's South Africa will look to script their own fairytale, by finally breaking their run of heartbreaks at ICC events.
Sack Gambhir before he damages any more careers, if you must. But it cannot stop there. The project ahead must be bigger, more ambitious, and far more urgent: Rebuilding the spine of Indian cricket from the grassroots up, and giving the Test team the seriousness it deserves. Only then will Indian cricket stop lurching from one crisis to another and begin, once again, to imagine greatness, suggests Prem Panicker.
After bowling out SA A for 309, overnight 299/9, in the first session, India succumbed to their own waywardness, and the relentlessness of off-spinner Prenelan Subrayen (5/61), to concede an innings lead of 75.
South Africa skipper Laura Wolvaardt said that once their Women's World Cup contest against Sri Lanka was reduced to 20 overs a side, she treated it like a T20 game and came out to bat with the same mindset, in Colombo, on Friday.
Bengal will be bolstered by the return of veteran pacer Mohammed Shami who has who has been out of India contention since the Champions Trophy.
For India, the battle is no longer about proving skill or form, but about crossing the elusive final hurdle that has so often tripped them -- including in this very tournament.
The Indians have not featured in ODIs in recent months but Kuldeep Yadav (650) and Ravindra Jadeja (616) still remained static at number three and number nine in the latest ODI rankings for bowlers.
