The 40-year-old Spanish coach is set to take charge of ATK Mohun Bagan, who parted ways with Antonio Habas on Saturday, after a string of poor results saw the side slip to the bottom half of the points table.
The result also meant Khalid Jamil is still unbeaten in the competition and extended NorthEast's winning run to ten games.
ATK MB's first real opportunity of the game came midway through the first half when Boumous broke free on a counter-attack, shrugged off a challenge from Wangjam and managed to get a shot on target. Gurpreet Singh Sandhu, however, got a strong hand to the strike and parried away.
Valskis scored in the 30th and 66th minute while Roy Krishna pulled one back for ATKMB in the 80th minute.
Defending champions Chennaiyin FC snapped their five-match winless streak as Jeje Lalpekhlua and Davide Succi scored once in each half to beat FC Pune City 2-0 in their Indian Super League football match in Chennai on Tuesday.
Kerala Blasters put themselves back in the semi-finals race as they brushed aside Pune City FC challenge with a 2-1 in an ISL match, in Kochi on Friday.
Atletico de Kolkata were guilty of missing too many chances and were held to a goalless draw against FC Pune City in their concluding group encounter of Hero Indian Super League at Rabindra Sarobar Stadium, Kolkata, on Friday.
Two-time champions ATK made their Christmas celebrations special, pipping Bengaluru FC by a David Williams solitary strike to secure their first ever win over the defending champions in the Indian Super League, in Kolkata, on Wednesday.
Defending champions Atletico de Kolkata handed a 4-0 rout to FC Goa to climb atop the table and put one step in the semifinals after a one-sided Indian Super League (ISL) clash.
ATK's David Williams scored the all-important goal in the 48th minute to seal the win on a day when Chennaiyin FC did everything but score.
Dudu Omagbemi and Konstantinos Katsouranis scored in each half as FC Pune City beat Atletico de Kolkata 3-1 and snapped the league leaders' unbeaten run in the Hero Indian Super League in Kolkata on Friday.
This and more from the happenings in the world of football
The merged club will come into existence in June and compete in the ISL 2020-21. The two sides will, however, play separately in the current I-League and ISL seasons.
Atletico de Kolkata's erratic run in away games continued as a spirited Pune City FC held them to a 1-1 draw in an 11th round encounter of the Indian Super League, in Pune, on Saturday.
Former captain Sourav Ganguly on Thursday said current India skipper Virat Kohli's aggression on and off the pitch was two times more his own aggression when he led the national cricket team. "Virat's aggression is two times more than mine," Ganguly told reporters on the sidelines of the launch of Sourav Ganguly Foundation and Sourav Ganguly Cricket School, which is powered by PitchVision Cricket Technology, in Kolkata.
Chennaiyin FC stormed into the final of the Indian Super League football on 4-2 aggregate against defending champions Atletico de Kolkata despite losing the semi-final second leg 1-2.
Atletico de Kolkata spurned the golden opportunity of making best use of home advantage as they were held to a goalless draw by FC Goa in the first-leg semi-final of the Hero Indian Super League in Kolkata.
FC Pune City's home woes in the Hero Indian Super League continued as they dropped precious points in a 1-1 draw against Chennaiyin FC at Shree Shiv Chhatrapati Sports Complex Stadium, Balewadi, Pune, on Sunday.
ATK cancelled two scored in the first half by Bengaluru FC while Kolkata giants Mohun Bagan defeated Churchill Brothers.
FC Goa secured a hard-fought 1-0 victory over FC Pune City to climb up from the bottom of the Indian Super League points table in Pune on Thursday. FC Goa were in danger of exiting the league early this season but coach Zico masterminded his first win over a team coached by Antonio Habas as Brazilian striker Rafael Coelho scored the all-important goal from a free-kick in the 32nd minute at Balewadi Sports Complex Stadium here. The win helped FC Goa move to the seventh spot with seven points from eight matches while FC Pune City are now at the bottom with six points from seven matches.
With their fourth win of the campaign, ATK have now 14 points from seven matches while NorthEast, who have 10 points, are at fourth spot.
Argentine legend Diego Maradona will kick off a football conclave on October 3 in the presence of a galaxy of current and former Indian stars like Bhaichung Bhutia, Sunil Chhetri and I M Vijayan.
Iain Hume struck his second hat-trick of the season as defending champions Atletico de Kolkata today became the first team to seal a semifinal berth following their 4-1 rout of FC Pune City in the Indian Super League football tournament at the Vivekananda Yuva Bharati Krirangan in Kolkata on Friday.
All the results from the I-League and ISL matches played on Saturday
Summary of sports events and persons who made news on Sunday.
After watching his first football match at an Indian stadium, Bollywood star Ranbir Kapoor said the atmosphere during the lung opener of the ISL in Kolkata matched any top international games.
Hrithik Roshan co-owned Indian Super League team FC Pune City on Tuesday announced former Chelsea and Barcelona striker Eidur Gudjohnsen as their marquee player for the 2016 edition of the league.
Atletico de Kolkata's super sub Mohammed Rafique, who scored the winning goal in the inaugural Indian Super League said he will cherish his 20 minutes on the field for the rest of his life.
News of all that's transpired on and off the football field
Images from the soccer matches played across Europe on Saturday.
Christmas came early to the 'City of Joy' as the inaugural Indian Super League champions Atletico de Kolkata returned home to a hero's welcome.
News of all that's transpired on and off the football field
A depleted Atletico de Kolkata, without star forward Fikru Teferra, put up a spirited show but could not score that elusive winner settling for a 1-1 draw against a lucky Kerala Blasters FC in their fifth ISL encounter at the Salt Lake Stadium.
All the results from the I-League and ISL matches played on Saturday.